Home / 377,708.50-521,275.38-282,049.12

Finding the Fourth Proportional to 377,708.50, 521,275.38 and 282,049.12

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Solution

The fourth proportional to 377,708.50, 521,275.38 and 282,049.12 is: 389,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,708.50 : 521,275.38 = 282,049.12 : x
  2. Step 2: Convert to fraction form
    377,708.50/521,275.38 = 282,049.12/x
  3. Step 3: Cross multiply
    377,708.50x = 521,275.38 × 282,049.12
  4. Step 4: Simplify right side
    377,708.50x = 147,025,262,206.67
  5. Step 5: Solve for x
    x = 147,025,262,206.67/377,708.50
  6. Step 6: Final answer
    x = 389,255.90

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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.