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Finding the Fourth Proportional to 439,957.08, 607,140.77 and 238,753.08

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Solution

The fourth proportional to 439,957.08, 607,140.77 and 238,753.08 is: 329,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,957.08 : 607,140.77 = 238,753.08 : x
  2. Step 2: Convert to fraction form
    439,957.08/607,140.77 = 238,753.08/x
  3. Step 3: Cross multiply
    439,957.08x = 607,140.77 × 238,753.08
  4. Step 4: Simplify right side
    439,957.08x = 144,956,727,637.31
  5. Step 5: Solve for x
    x = 144,956,727,637.31/439,957.08
  6. Step 6: Final answer
    x = 329,479.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.