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Finding the Fourth Proportional to 376,851.48, 520,099.95 and 215,758.27

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Solution

The fourth proportional to 376,851.48, 520,099.95 and 215,758.27 is: 297,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,851.48 : 520,099.95 = 215,758.27 : x
  2. Step 2: Convert to fraction form
    376,851.48/520,099.95 = 215,758.27/x
  3. Step 3: Cross multiply
    376,851.48x = 520,099.95 × 215,758.27
  4. Step 4: Simplify right side
    376,851.48x = 112,215,865,439.09
  5. Step 5: Solve for x
    x = 112,215,865,439.09/376,851.48
  6. Step 6: Final answer
    x = 297,772.12

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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.