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Finding the Fourth Proportional to 252,228.76, 378,344.50 and 74,737.30

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Solution

The fourth proportional to 252,228.76, 378,344.50 and 74,737.30 is: 112,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,228.76 : 378,344.50 = 74,737.30 : x
  2. Step 2: Convert to fraction form
    252,228.76/378,344.50 = 74,737.30/x
  3. Step 3: Cross multiply
    252,228.76x = 378,344.50 × 74,737.30
  4. Step 4: Simplify right side
    252,228.76x = 28,276,446,399.85
  5. Step 5: Solve for x
    x = 28,276,446,399.85/252,228.76
  6. Step 6: Final answer
    x = 112,106.36

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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.