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Finding the Fourth Proportional to 347,998.65, 480,469.50 and 267,281.88

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Solution

The fourth proportional to 347,998.65, 480,469.50 and 267,281.88 is: 369,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,998.65 : 480,469.50 = 267,281.88 : x
  2. Step 2: Convert to fraction form
    347,998.65/480,469.50 = 267,281.88/x
  3. Step 3: Cross multiply
    347,998.65x = 480,469.50 × 267,281.88
  4. Step 4: Simplify right side
    347,998.65x = 128,420,791,242.66
  5. Step 5: Solve for x
    x = 128,420,791,242.66/347,998.65
  6. Step 6: Final answer
    x = 369,026.69

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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.