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Finding the Fourth Proportional to 377,787.84, 521,182.80 and 216,605.92

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Solution

The fourth proportional to 377,787.84, 521,182.80 and 216,605.92 is: 298,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,787.84 : 521,182.80 = 216,605.92 : x
  2. Step 2: Convert to fraction form
    377,787.84/521,182.80 = 216,605.92/x
  3. Step 3: Cross multiply
    377,787.84x = 521,182.80 × 216,605.92
  4. Step 4: Simplify right side
    377,787.84x = 112,891,279,882.18
  5. Step 5: Solve for x
    x = 112,891,279,882.18/377,787.84
  6. Step 6: Final answer
    x = 298,821.90

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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.