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Finding the Fourth Proportional to 392,374.20, 541,441.08 and 229,044.88

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Solution

The fourth proportional to 392,374.20, 541,441.08 and 229,044.88 is: 316,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,374.20 : 541,441.08 = 229,044.88 : x
  2. Step 2: Convert to fraction form
    392,374.20/541,441.08 = 229,044.88/x
  3. Step 3: Cross multiply
    392,374.20x = 541,441.08 × 229,044.88
  4. Step 4: Simplify right side
    392,374.20x = 124,014,306,808.35
  5. Step 5: Solve for x
    x = 124,014,306,808.35/392,374.20
  6. Step 6: Final answer
    x = 316,061.32

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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.