Home / 284,147.27-392,124.05-155,086.92

Finding the Fourth Proportional to 284,147.27, 392,124.05 and 155,086.92

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Solution

The fourth proportional to 284,147.27, 392,124.05 and 155,086.92 is: 214,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,147.27 : 392,124.05 = 155,086.92 : x
  2. Step 2: Convert to fraction form
    284,147.27/392,124.05 = 155,086.92/x
  3. Step 3: Cross multiply
    284,147.27x = 392,124.05 × 155,086.92
  4. Step 4: Simplify right side
    284,147.27x = 60,813,310,396.99
  5. Step 5: Solve for x
    x = 60,813,310,396.99/284,147.27
  6. Step 6: Final answer
    x = 214,020.40

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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.