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Finding the Fourth Proportional to 392,588.60, 541,731.58 and 220,525.88

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Solution

The fourth proportional to 392,588.60, 541,731.58 and 220,525.88 is: 304,302.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,588.60 : 541,731.58 = 220,525.88 : x
  2. Step 2: Convert to fraction form
    392,588.60/541,731.58 = 220,525.88/x
  3. Step 3: Cross multiply
    392,588.60x = 541,731.58 × 220,525.88
  4. Step 4: Simplify right side
    392,588.60x = 119,465,833,403.29
  5. Step 5: Solve for x
    x = 119,465,833,403.29/392,588.60
  6. Step 6: Final answer
    x = 304,302.86

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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.