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Finding the Fourth Proportional to 440,417.97, 660,608.73 and 140,915.61

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Solution

The fourth proportional to 440,417.97, 660,608.73 and 140,915.61 is: 211,367.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,417.97 : 660,608.73 = 140,915.61 : x
  2. Step 2: Convert to fraction form
    440,417.97/660,608.73 = 140,915.61/x
  3. Step 3: Cross multiply
    440,417.97x = 660,608.73 × 140,915.61
  4. Step 4: Simplify right side
    440,417.97x = 93,090,082,159.28
  5. Step 5: Solve for x
    x = 93,090,082,159.28/440,417.97
  6. Step 6: Final answer
    x = 211,367.58

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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.