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Finding the Fourth Proportional to 220,795.71, 330,966.35 and 87,770.22

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Solution

The fourth proportional to 220,795.71, 330,966.35 and 87,770.22 is: 131,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,795.71 : 330,966.35 = 87,770.22 : x
  2. Step 2: Convert to fraction form
    220,795.71/330,966.35 = 87,770.22/x
  3. Step 3: Cross multiply
    220,795.71x = 330,966.35 × 87,770.22
  4. Step 4: Simplify right side
    220,795.71x = 29,048,988,913.25
  5. Step 5: Solve for x
    x = 29,048,988,913.25/220,795.71
  6. Step 6: Final answer
    x = 131,565.01

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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.