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Finding the Fourth Proportional to 658,915.82, 988,435.29 and 185,600.42

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Solution

The fourth proportional to 658,915.82, 988,435.29 and 185,600.42 is: 278,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,915.82 : 988,435.29 = 185,600.42 : x
  2. Step 2: Convert to fraction form
    658,915.82/988,435.29 = 185,600.42/x
  3. Step 3: Cross multiply
    658,915.82x = 988,435.29 × 185,600.42
  4. Step 4: Simplify right side
    658,915.82x = 183,454,004,966.82
  5. Step 5: Solve for x
    x = 183,454,004,966.82/658,915.82
  6. Step 6: Final answer
    x = 278,417.97

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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.