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Finding the Fourth Proportional to 208,850.65, 288,213.16 and 113,357.34

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Solution

The fourth proportional to 208,850.65, 288,213.16 and 113,357.34 is: 156,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,850.65 : 288,213.16 = 113,357.34 : x
  2. Step 2: Convert to fraction form
    208,850.65/288,213.16 = 113,357.34/x
  3. Step 3: Cross multiply
    208,850.65x = 288,213.16 × 113,357.34
  4. Step 4: Simplify right side
    208,850.65x = 32,671,077,170.59
  5. Step 5: Solve for x
    x = 32,671,077,170.59/208,850.65
  6. Step 6: Final answer
    x = 156,432.73

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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.