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Finding the Fourth Proportional to 376,900.92, 520,152.12 and 215,806.44

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Solution

The fourth proportional to 376,900.92, 520,152.12 and 215,806.44 is: 297,829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,900.92 : 520,152.12 = 215,806.44 : x
  2. Step 2: Convert to fraction form
    376,900.92/520,152.12 = 215,806.44/x
  3. Step 3: Cross multiply
    376,900.92x = 520,152.12 × 215,806.44
  4. Step 4: Simplify right side
    376,900.92x = 112,252,177,275.65
  5. Step 5: Solve for x
    x = 112,252,177,275.65/376,900.92
  6. Step 6: Final answer
    x = 297,829.41

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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.