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Finding the Fourth Proportional to 508,876.08, 763,314.12 and 171,918.24

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Solution

The fourth proportional to 508,876.08, 763,314.12 and 171,918.24 is: 257,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,876.08 : 763,314.12 = 171,918.24 : x
  2. Step 2: Convert to fraction form
    508,876.08/763,314.12 = 171,918.24/x
  3. Step 3: Cross multiply
    508,876.08x = 763,314.12 × 171,918.24
  4. Step 4: Simplify right side
    508,876.08x = 131,227,620,077.55
  5. Step 5: Solve for x
    x = 131,227,620,077.55/508,876.08
  6. Step 6: Final answer
    x = 257,877.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.