Home / 208,854.20-288,218.97-113,360.87

Finding the Fourth Proportional to 208,854.20, 288,218.97 and 113,360.87

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Solution

The fourth proportional to 208,854.20, 288,218.97 and 113,360.87 is: 156,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,854.20 : 288,218.97 = 113,360.87 : x
  2. Step 2: Convert to fraction form
    208,854.20/288,218.97 = 113,360.87/x
  3. Step 3: Cross multiply
    208,854.20x = 288,218.97 × 113,360.87
  4. Step 4: Simplify right side
    208,854.20x = 32,672,751,748.61
  5. Step 5: Solve for x
    x = 32,672,751,748.61/208,854.20
  6. Step 6: Final answer
    x = 156,438.09

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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.