Home / 208,805.28-288,152.04-113,311.95

Finding the Fourth Proportional to 208,805.28, 288,152.04 and 113,311.95

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Solution

The fourth proportional to 208,805.28, 288,152.04 and 113,311.95 is: 156,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,805.28 : 288,152.04 = 113,311.95 : x
  2. Step 2: Convert to fraction form
    208,805.28/288,152.04 = 113,311.95/x
  3. Step 3: Cross multiply
    208,805.28x = 288,152.04 × 113,311.95
  4. Step 4: Simplify right side
    208,805.28x = 32,651,069,548.88
  5. Step 5: Solve for x
    x = 32,651,069,548.88/208,805.28
  6. Step 6: Final answer
    x = 156,370.90

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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.