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Finding the Fourth Proportional to 404,877.68, 607,254.08 and 138,577.04

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Solution

The fourth proportional to 404,877.68, 607,254.08 and 138,577.04 is: 207,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,877.68 : 607,254.08 = 138,577.04 : x
  2. Step 2: Convert to fraction form
    404,877.68/607,254.08 = 138,577.04/x
  3. Step 3: Cross multiply
    404,877.68x = 607,254.08 × 138,577.04
  4. Step 4: Simplify right side
    404,877.68x = 84,151,472,934.32
  5. Step 5: Solve for x
    x = 84,151,472,934.32/404,877.68
  6. Step 6: Final answer
    x = 207,844.19

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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.