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Finding the Fourth Proportional to 277,326.32, 382,702.56 and 156,478.85

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Solution

The fourth proportional to 277,326.32, 382,702.56 and 156,478.85 is: 215,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,326.32 : 382,702.56 = 156,478.85 : x
  2. Step 2: Convert to fraction form
    277,326.32/382,702.56 = 156,478.85/x
  3. Step 3: Cross multiply
    277,326.32x = 382,702.56 × 156,478.85
  4. Step 4: Simplify right side
    277,326.32x = 59,884,857,824.90
  5. Step 5: Solve for x
    x = 59,884,857,824.90/277,326.32
  6. Step 6: Final answer
    x = 215,936.44

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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.