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Finding the Fourth Proportional to 208,637.17, 312,817.50 and 75,500.11

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Solution

The fourth proportional to 208,637.17, 312,817.50 and 75,500.11 is: 113,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,637.17 : 312,817.50 = 75,500.11 : x
  2. Step 2: Convert to fraction form
    208,637.17/312,817.50 = 75,500.11/x
  3. Step 3: Cross multiply
    208,637.17x = 312,817.50 × 75,500.11
  4. Step 4: Simplify right side
    208,637.17x = 23,617,755,659.93
  5. Step 5: Solve for x
    x = 23,617,755,659.93/208,637.17
  6. Step 6: Final answer
    x = 113,200.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.