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Finding the Fourth Proportional to 214,458.73, 321,463.63 and 72,254.87

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Solution

The fourth proportional to 214,458.73, 321,463.63 and 72,254.87 is: 108,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,458.73 : 321,463.63 = 72,254.87 : x
  2. Step 2: Convert to fraction form
    214,458.73/321,463.63 = 72,254.87/x
  3. Step 3: Cross multiply
    214,458.73x = 321,463.63 × 72,254.87
  4. Step 4: Simplify right side
    214,458.73x = 23,227,313,885.67
  5. Step 5: Solve for x
    x = 23,227,313,885.67/214,458.73
  6. Step 6: Final answer
    x = 108,306.68

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1.5x scale

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.