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Finding the Fourth Proportional to 266,273.63, 399,413.97 and 88,780.70

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Solution

The fourth proportional to 266,273.63, 399,413.97 and 88,780.70 is: 133,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,273.63 : 399,413.97 = 88,780.70 : x
  2. Step 2: Convert to fraction form
    266,273.63/399,413.97 = 88,780.70/x
  3. Step 3: Cross multiply
    266,273.63x = 399,413.97 × 88,780.70
  4. Step 4: Simplify right side
    266,273.63x = 35,460,250,411.08
  5. Step 5: Solve for x
    x = 35,460,250,411.08/266,273.63
  6. Step 6: Final answer
    x = 133,172.22

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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.