Home / 377,689.38-521,281.26-216,545.55

Finding the Fourth Proportional to 377,689.38, 521,281.26 and 216,545.55

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Solution

The fourth proportional to 377,689.38, 521,281.26 and 216,545.55 is: 298,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,689.38 : 521,281.26 = 216,545.55 : x
  2. Step 2: Convert to fraction form
    377,689.38/521,281.26 = 216,545.55/x
  3. Step 3: Cross multiply
    377,689.38x = 521,281.26 × 216,545.55
  4. Step 4: Simplify right side
    377,689.38x = 112,881,137,151.39
  5. Step 5: Solve for x
    x = 112,881,137,151.39/377,689.38
  6. Step 6: Final answer
    x = 298,872.94

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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.