Home / 457,233.80-686,293.38-220,742.42

Finding the Fourth Proportional to 457,233.80, 686,293.38 and 220,742.42

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Solution

The fourth proportional to 457,233.80, 686,293.38 and 220,742.42 is: 331,327.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,233.80 : 686,293.38 = 220,742.42 : x
  2. Step 2: Convert to fraction form
    457,233.80/686,293.38 = 220,742.42/x
  3. Step 3: Cross multiply
    457,233.80x = 686,293.38 × 220,742.42
  4. Step 4: Simplify right side
    457,233.80x = 151,494,061,531.18
  5. Step 5: Solve for x
    x = 151,494,061,531.18/457,233.80
  6. Step 6: Final answer
    x = 331,327.35

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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.