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Finding the Fourth Proportional to 220,157.96, 330,050.43 and 87,132.06

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Solution

The fourth proportional to 220,157.96, 330,050.43 and 87,132.06 is: 130,624.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,157.96 : 330,050.43 = 87,132.06 : x
  2. Step 2: Convert to fraction form
    220,157.96/330,050.43 = 87,132.06/x
  3. Step 3: Cross multiply
    220,157.96x = 330,050.43 × 87,132.06
  4. Step 4: Simplify right side
    220,157.96x = 28,757,973,869.79
  5. Step 5: Solve for x
    x = 28,757,973,869.79/220,157.96
  6. Step 6: Final answer
    x = 130,624.28

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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.