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Finding the Fourth Proportional to 242,711.70, 365,377.92 and 218,298.30

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Solution

The fourth proportional to 242,711.70, 365,377.92 and 218,298.30 is: 328,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,711.70 : 365,377.92 = 218,298.30 : x
  2. Step 2: Convert to fraction form
    242,711.70/365,377.92 = 218,298.30/x
  3. Step 3: Cross multiply
    242,711.70x = 365,377.92 × 218,298.30
  4. Step 4: Simplify right side
    242,711.70x = 79,761,378,793.54
  5. Step 5: Solve for x
    x = 79,761,378,793.54/242,711.70
  6. Step 6: Final answer
    x = 328,626.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.