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Finding the Fourth Proportional to 440,249, 607,543.68 and 239,045

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Solution

The fourth proportional to 440,249, 607,543.68 and 239,045 is: 329,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,249 : 607,543.68 = 239,045 : x
  2. Step 2: Convert to fraction form
    440,249/607,543.68 = 239,045/x
  3. Step 3: Cross multiply
    440,249x = 607,543.68 × 239,045
  4. Step 4: Simplify right side
    440,249x = 145,230,278,985.60
  5. Step 5: Solve for x
    x = 145,230,278,985.60/440,249
  6. Step 6: Final answer
    x = 329,882.13

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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.