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Finding the Fourth Proportional to 101,008.31, 151,497.88 and 30,868.79

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Solution

The fourth proportional to 101,008.31, 151,497.88 and 30,868.79 is: 46,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,008.31 : 151,497.88 = 30,868.79 : x
  2. Step 2: Convert to fraction form
    101,008.31/151,497.88 = 30,868.79/x
  3. Step 3: Cross multiply
    101,008.31x = 151,497.88 × 30,868.79
  4. Step 4: Simplify right side
    101,008.31x = 4,676,555,408.50
  5. Step 5: Solve for x
    x = 4,676,555,408.50/101,008.31
  6. Step 6: Final answer
    x = 46,298.72

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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.