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Finding the Fourth Proportional to 266,750.60, 400,125.90 and 161,774.60

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Solution

The fourth proportional to 266,750.60, 400,125.90 and 161,774.60 is: 242,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,750.60 : 400,125.90 = 161,774.60 : x
  2. Step 2: Convert to fraction form
    266,750.60/400,125.90 = 161,774.60/x
  3. Step 3: Cross multiply
    266,750.60x = 400,125.90 × 161,774.60
  4. Step 4: Simplify right side
    266,750.60x = 64,730,207,422.14
  5. Step 5: Solve for x
    x = 64,730,207,422.14/266,750.60
  6. Step 6: Final answer
    x = 242,661.90

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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.