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Finding the Fourth Proportional to 538,490.70, 807,774.45 and 164,513.10

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Solution

The fourth proportional to 538,490.70, 807,774.45 and 164,513.10 is: 246,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,490.70 : 807,774.45 = 164,513.10 : x
  2. Step 2: Convert to fraction form
    538,490.70/807,774.45 = 164,513.10/x
  3. Step 3: Cross multiply
    538,490.70x = 807,774.45 × 164,513.10
  4. Step 4: Simplify right side
    538,490.70x = 132,889,478,870.30
  5. Step 5: Solve for x
    x = 132,889,478,870.30/538,490.70
  6. Step 6: Final answer
    x = 246,781.38

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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.