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Finding the Fourth Proportional to 377,776.80, 521,167.59 and 216,594.90

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Solution

The fourth proportional to 377,776.80, 521,167.59 and 216,594.90 is: 298,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,776.80 : 521,167.59 = 216,594.90 : x
  2. Step 2: Convert to fraction form
    377,776.80/521,167.59 = 216,594.90/x
  3. Step 3: Cross multiply
    377,776.80x = 521,167.59 × 216,594.90
  4. Step 4: Simplify right side
    377,776.80x = 112,882,242,039.29
  5. Step 5: Solve for x
    x = 112,882,242,039.29/377,776.80
  6. Step 6: Final answer
    x = 298,806.71

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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.