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Finding the Fourth Proportional to 229,760.65, 344,641.10 and 72,001.45

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Solution

The fourth proportional to 229,760.65, 344,641.10 and 72,001.45 is: 108,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,760.65 : 344,641.10 = 72,001.45 : x
  2. Step 2: Convert to fraction form
    229,760.65/344,641.10 = 72,001.45/x
  3. Step 3: Cross multiply
    229,760.65x = 344,641.10 × 72,001.45
  4. Step 4: Simplify right side
    229,760.65x = 24,814,658,929.60
  5. Step 5: Solve for x
    x = 24,814,658,929.60/229,760.65
  6. Step 6: Final answer
    x = 108,002.21

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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.