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Finding the Fourth Proportional to 208,754, 288,072.12 and 113,257.04

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Solution

The fourth proportional to 208,754, 288,072.12 and 113,257.04 is: 156,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,754 : 288,072.12 = 113,257.04 : x
  2. Step 2: Convert to fraction form
    208,754/288,072.12 = 113,257.04/x
  3. Step 3: Cross multiply
    208,754x = 288,072.12 × 113,257.04
  4. Step 4: Simplify right side
    208,754x = 32,626,195,617.72
  5. Step 5: Solve for x
    x = 32,626,195,617.72/208,754
  6. Step 6: Final answer
    x = 156,290.16

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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.