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Finding the Fourth Proportional to 401,470.83, 602,207.31 and 135,418.04

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Solution

The fourth proportional to 401,470.83, 602,207.31 and 135,418.04 is: 203,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,470.83 : 602,207.31 = 135,418.04 : x
  2. Step 2: Convert to fraction form
    401,470.83/602,207.31 = 135,418.04/x
  3. Step 3: Cross multiply
    401,470.83x = 602,207.31 × 135,418.04
  4. Step 4: Simplify right side
    401,470.83x = 81,549,730,582.84
  5. Step 5: Solve for x
    x = 81,549,730,582.84/401,470.83
  6. Step 6: Final answer
    x = 203,127.41

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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.