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Finding the Fourth Proportional to 207,131.88, 310,715.61 and 88,775.10

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Solution

The fourth proportional to 207,131.88, 310,715.61 and 88,775.10 is: 133,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,131.88 : 310,715.61 = 88,775.10 : x
  2. Step 2: Convert to fraction form
    207,131.88/310,715.61 = 88,775.10/x
  3. Step 3: Cross multiply
    207,131.88x = 310,715.61 × 88,775.10
  4. Step 4: Simplify right side
    207,131.88x = 27,583,809,349.31
  5. Step 5: Solve for x
    x = 27,583,809,349.31/207,131.88
  6. Step 6: Final answer
    x = 133,170.27

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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.