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Finding the Fourth Proportional to 370,168.92, 555,481.80 and 145,489.88

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Solution

The fourth proportional to 370,168.92, 555,481.80 and 145,489.88 is: 218,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,168.92 : 555,481.80 = 145,489.88 : x
  2. Step 2: Convert to fraction form
    370,168.92/555,481.80 = 145,489.88/x
  3. Step 3: Cross multiply
    370,168.92x = 555,481.80 × 145,489.88
  4. Step 4: Simplify right side
    370,168.92x = 80,816,980,424.18
  5. Step 5: Solve for x
    x = 80,816,980,424.18/370,168.92
  6. Step 6: Final answer
    x = 218,324.60

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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.