Home / 284,306.14-392,337.33-156,979

Finding the Fourth Proportional to 284,306.14, 392,337.33 and 156,979

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Solution

The fourth proportional to 284,306.14, 392,337.33 and 156,979 is: 216,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,306.14 : 392,337.33 = 156,979 : x
  2. Step 2: Convert to fraction form
    284,306.14/392,337.33 = 156,979/x
  3. Step 3: Cross multiply
    284,306.14x = 392,337.33 × 156,979
  4. Step 4: Simplify right side
    284,306.14x = 61,588,721,726.07
  5. Step 5: Solve for x
    x = 61,588,721,726.07/284,306.14
  6. Step 6: Final answer
    x = 216,628.18

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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.