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Finding the Fourth Proportional to 440,143.88, 607,399.16 and 238,939.88

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Solution

The fourth proportional to 440,143.88, 607,399.16 and 238,939.88 is: 329,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,143.88 : 607,399.16 = 238,939.88 : x
  2. Step 2: Convert to fraction form
    440,143.88/607,399.16 = 238,939.88/x
  3. Step 3: Cross multiply
    440,143.88x = 607,399.16 × 238,939.88
  4. Step 4: Simplify right side
    440,143.88x = 145,131,878,170.81
  5. Step 5: Solve for x
    x = 145,131,878,170.81/440,143.88
  6. Step 6: Final answer
    x = 329,737.36

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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.