Home / 284,120.40-392,228-176,724.88

Finding the Fourth Proportional to 284,120.40, 392,228 and 176,724.88

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Solution

The fourth proportional to 284,120.40, 392,228 and 176,724.88 is: 243,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,120.40 : 392,228 = 176,724.88 : x
  2. Step 2: Convert to fraction form
    284,120.40/392,228 = 176,724.88/x
  3. Step 3: Cross multiply
    284,120.40x = 392,228 × 176,724.88
  4. Step 4: Simplify right side
    284,120.40x = 69,316,446,232.64
  5. Step 5: Solve for x
    x = 69,316,446,232.64/284,120.40
  6. Step 6: Final answer
    x = 243,968.56

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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.