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Finding the Fourth Proportional to 274,915.60, 412,358.41 and 75,221.58

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Solution

The fourth proportional to 274,915.60, 412,358.41 and 75,221.58 is: 112,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,915.60 : 412,358.41 = 75,221.58 : x
  2. Step 2: Convert to fraction form
    274,915.60/412,358.41 = 75,221.58/x
  3. Step 3: Cross multiply
    274,915.60x = 412,358.41 × 75,221.58
  4. Step 4: Simplify right side
    274,915.60x = 31,018,251,126.49
  5. Step 5: Solve for x
    x = 31,018,251,126.49/274,915.60
  6. Step 6: Final answer
    x = 112,828.27

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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.