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Finding the Fourth Proportional to 404,476.02, 606,714.17 and 138,239.01

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Solution

The fourth proportional to 404,476.02, 606,714.17 and 138,239.01 is: 207,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,476.02 : 606,714.17 = 138,239.01 : x
  2. Step 2: Convert to fraction form
    404,476.02/606,714.17 = 138,239.01/x
  3. Step 3: Cross multiply
    404,476.02x = 606,714.17 × 138,239.01
  4. Step 4: Simplify right side
    404,476.02x = 83,871,565,522.58
  5. Step 5: Solve for x
    x = 83,871,565,522.58/404,476.02
  6. Step 6: Final answer
    x = 207,358.56

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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.