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Finding the Fourth Proportional to 376,276.50, 519,261.92 and 215,134.92

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Solution

The fourth proportional to 376,276.50, 519,261.92 and 215,134.92 is: 296,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,276.50 : 519,261.92 = 215,134.92 : x
  2. Step 2: Convert to fraction form
    376,276.50/519,261.92 = 215,134.92/x
  3. Step 3: Cross multiply
    376,276.50x = 519,261.92 × 215,134.92
  4. Step 4: Simplify right side
    376,276.50x = 111,711,370,542.57
  5. Step 5: Solve for x
    x = 111,711,370,542.57/376,276.50
  6. Step 6: Final answer
    x = 296,886.39

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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.