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Finding the Fourth Proportional to 376,902.92, 520,154.88 and 215,808.44

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Solution

The fourth proportional to 376,902.92, 520,154.88 and 215,808.44 is: 297,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,902.92 : 520,154.88 = 215,808.44 : x
  2. Step 2: Convert to fraction form
    376,902.92/520,154.88 = 215,808.44/x
  3. Step 3: Cross multiply
    376,902.92x = 520,154.88 × 215,808.44
  4. Step 4: Simplify right side
    376,902.92x = 112,253,813,211.19
  5. Step 5: Solve for x
    x = 112,253,813,211.19/376,902.92
  6. Step 6: Final answer
    x = 297,832.17

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1.5x scale

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.