Home / 208,824.09-288,178.20-113,330.90

Finding the Fourth Proportional to 208,824.09, 288,178.20 and 113,330.90

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Solution

The fourth proportional to 208,824.09, 288,178.20 and 113,330.90 is: 156,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,824.09 : 288,178.20 = 113,330.90 : x
  2. Step 2: Convert to fraction form
    208,824.09/288,178.20 = 113,330.90/x
  3. Step 3: Cross multiply
    208,824.09x = 288,178.20 × 113,330.90
  4. Step 4: Simplify right side
    208,824.09x = 32,659,493,325.49
  5. Step 5: Solve for x
    x = 32,659,493,325.49/208,824.09
  6. Step 6: Final answer
    x = 156,397.15

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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.