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Finding the Fourth Proportional to 237,812.62, 328,168.86 and 135,817.90

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Solution

The fourth proportional to 237,812.62, 328,168.86 and 135,817.90 is: 187,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,812.62 : 328,168.86 = 135,817.90 : x
  2. Step 2: Convert to fraction form
    237,812.62/328,168.86 = 135,817.90/x
  3. Step 3: Cross multiply
    237,812.62x = 328,168.86 × 135,817.90
  4. Step 4: Simplify right side
    237,812.62x = 44,571,205,410.59
  5. Step 5: Solve for x
    x = 44,571,205,410.59/237,812.62
  6. Step 6: Final answer
    x = 187,421.53

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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.