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Finding the Fourth Proportional to 508,943.60, 763,415.40 and 176,519.60

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Solution

The fourth proportional to 508,943.60, 763,415.40 and 176,519.60 is: 264,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,943.60 : 763,415.40 = 176,519.60 : x
  2. Step 2: Convert to fraction form
    508,943.60/763,415.40 = 176,519.60/x
  3. Step 3: Cross multiply
    508,943.60x = 763,415.40 × 176,519.60
  4. Step 4: Simplify right side
    508,943.60x = 134,757,781,041.84
  5. Step 5: Solve for x
    x = 134,757,781,041.84/508,943.60
  6. Step 6: Final answer
    x = 264,779.40

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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.