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Finding the Fourth Proportional to 392,516.30, 541,670.96 and 220,410.34

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Solution

The fourth proportional to 392,516.30, 541,670.96 and 220,410.34 is: 304,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,516.30 : 541,670.96 = 220,410.34 : x
  2. Step 2: Convert to fraction form
    392,516.30/541,670.96 = 220,410.34/x
  3. Step 3: Cross multiply
    392,516.30x = 541,670.96 × 220,410.34
  4. Step 4: Simplify right side
    392,516.30x = 119,389,880,461.73
  5. Step 5: Solve for x
    x = 119,389,880,461.73/392,516.30
  6. Step 6: Final answer
    x = 304,165.41

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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.