Home / 282,757.91-390,207.17-155,441.70

Finding the Fourth Proportional to 282,757.91, 390,207.17 and 155,441.70

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Solution

The fourth proportional to 282,757.91, 390,207.17 and 155,441.70 is: 214,510.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,757.91 : 390,207.17 = 155,441.70 : x
  2. Step 2: Convert to fraction form
    282,757.91/390,207.17 = 155,441.70/x
  3. Step 3: Cross multiply
    282,757.91x = 390,207.17 × 155,441.70
  4. Step 4: Simplify right side
    282,757.91x = 60,654,466,245.59
  5. Step 5: Solve for x
    x = 60,654,466,245.59/282,757.91
  6. Step 6: Final answer
    x = 214,510.24

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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.