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Finding the Fourth Proportional to 215,100.70, 322,793.19 and 101,281.07

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Solution

The fourth proportional to 215,100.70, 322,793.19 and 101,281.07 is: 151,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,100.70 : 322,793.19 = 101,281.07 : x
  2. Step 2: Convert to fraction form
    215,100.70/322,793.19 = 101,281.07/x
  3. Step 3: Cross multiply
    215,100.70x = 322,793.19 × 101,281.07
  4. Step 4: Simplify right side
    215,100.70x = 32,692,839,671.91
  5. Step 5: Solve for x
    x = 32,692,839,671.91/215,100.70
  6. Step 6: Final answer
    x = 151,988.53

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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.