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Finding the Fourth Proportional to 208,854.52, 288,219.80 and 113,361.22

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Solution

The fourth proportional to 208,854.52, 288,219.80 and 113,361.22 is: 156,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,854.52 : 288,219.80 = 113,361.22 : x
  2. Step 2: Convert to fraction form
    208,854.52/288,219.80 = 113,361.22/x
  3. Step 3: Cross multiply
    208,854.52x = 288,219.80 × 113,361.22
  4. Step 4: Simplify right side
    208,854.52x = 32,672,948,156.16
  5. Step 5: Solve for x
    x = 32,672,948,156.16/208,854.52
  6. Step 6: Final answer
    x = 156,438.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.