Home / 571,142.28-856,821.58-229,612.12

Finding the Fourth Proportional to 571,142.28, 856,821.58 and 229,612.12

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Solution

The fourth proportional to 571,142.28, 856,821.58 and 229,612.12 is: 344,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,142.28 : 856,821.58 = 229,612.12 : x
  2. Step 2: Convert to fraction form
    571,142.28/856,821.58 = 229,612.12/x
  3. Step 3: Cross multiply
    571,142.28x = 856,821.58 × 229,612.12
  4. Step 4: Simplify right side
    571,142.28x = 196,736,619,445.55
  5. Step 5: Solve for x
    x = 196,736,619,445.55/571,142.28
  6. Step 6: Final answer
    x = 344,461.66

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.