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Finding the Fourth Proportional to 358,717.31, 495,064.82 and 267,915.62

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Solution

The fourth proportional to 358,717.31, 495,064.82 and 267,915.62 is: 369,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,717.31 : 495,064.82 = 267,915.62 : x
  2. Step 2: Convert to fraction form
    358,717.31/495,064.82 = 267,915.62/x
  3. Step 3: Cross multiply
    358,717.31x = 495,064.82 × 267,915.62
  4. Step 4: Simplify right side
    358,717.31x = 132,635,596,384.95
  5. Step 5: Solve for x
    x = 132,635,596,384.95/358,717.31
  6. Step 6: Final answer
    x = 369,749.64

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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.