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Finding the Fourth Proportional to 440,068, 607,294.56 and 238,864

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Solution

The fourth proportional to 440,068, 607,294.56 and 238,864 is: 329,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,068 : 607,294.56 = 238,864 : x
  2. Step 2: Convert to fraction form
    440,068/607,294.56 = 238,864/x
  3. Step 3: Cross multiply
    440,068x = 607,294.56 × 238,864
  4. Step 4: Simplify right side
    440,068x = 145,060,807,779.84
  5. Step 5: Solve for x
    x = 145,060,807,779.84/440,068
  6. Step 6: Final answer
    x = 329,632.71

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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.