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Finding the Fourth Proportional to 252,915.52, 379,085.28 and 84,396.28

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Solution

The fourth proportional to 252,915.52, 379,085.28 and 84,396.28 is: 126,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,915.52 : 379,085.28 = 84,396.28 : x
  2. Step 2: Convert to fraction form
    252,915.52/379,085.28 = 84,396.28/x
  3. Step 3: Cross multiply
    252,915.52x = 379,085.28 × 84,396.28
  4. Step 4: Simplify right side
    252,915.52x = 31,993,387,434.76
  5. Step 5: Solve for x
    x = 31,993,387,434.76/252,915.52
  6. Step 6: Final answer
    x = 126,498.32

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1.5x scale

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.