Home / 284,719.12-392,951.40-163,857.88

Finding the Fourth Proportional to 284,719.12, 392,951.40 and 163,857.88

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Solution

The fourth proportional to 284,719.12, 392,951.40 and 163,857.88 is: 226,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,719.12 : 392,951.40 = 163,857.88 : x
  2. Step 2: Convert to fraction form
    284,719.12/392,951.40 = 163,857.88/x
  3. Step 3: Cross multiply
    284,719.12x = 392,951.40 × 163,857.88
  4. Step 4: Simplify right side
    284,719.12x = 64,388,183,347.03
  5. Step 5: Solve for x
    x = 64,388,183,347.03/284,719.12
  6. Step 6: Final answer
    x = 226,146.33

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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.