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Finding the Fourth Proportional to 266,056.40, 399,121.06 and 88,544.90

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Solution

The fourth proportional to 266,056.40, 399,121.06 and 88,544.90 is: 132,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,056.40 : 399,121.06 = 88,544.90 : x
  2. Step 2: Convert to fraction form
    266,056.40/399,121.06 = 88,544.90/x
  3. Step 3: Cross multiply
    266,056.40x = 399,121.06 × 88,544.90
  4. Step 4: Simplify right side
    266,056.40x = 35,340,134,345.59
  5. Step 5: Solve for x
    x = 35,340,134,345.59/266,056.40
  6. Step 6: Final answer
    x = 132,829.48

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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.