Home / 284,115.66-392,089.02-155,061.18

Finding the Fourth Proportional to 284,115.66, 392,089.02 and 155,061.18

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Solution

The fourth proportional to 284,115.66, 392,089.02 and 155,061.18 is: 213,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,115.66 : 392,089.02 = 155,061.18 : x
  2. Step 2: Convert to fraction form
    284,115.66/392,089.02 = 155,061.18/x
  3. Step 3: Cross multiply
    284,115.66x = 392,089.02 × 155,061.18
  4. Step 4: Simplify right side
    284,115.66x = 60,797,786,106.24
  5. Step 5: Solve for x
    x = 60,797,786,106.24/284,115.66
  6. Step 6: Final answer
    x = 213,989.56

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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.