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Finding the Fourth Proportional to 266,091.12, 399,141 and 88,595.28

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Solution

The fourth proportional to 266,091.12, 399,141 and 88,595.28 is: 132,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,091.12 : 399,141 = 88,595.28 : x
  2. Step 2: Convert to fraction form
    266,091.12/399,141 = 88,595.28/x
  3. Step 3: Cross multiply
    266,091.12x = 399,141 × 88,595.28
  4. Step 4: Simplify right side
    266,091.12x = 35,362,008,654.48
  5. Step 5: Solve for x
    x = 35,362,008,654.48/266,091.12
  6. Step 6: Final answer
    x = 132,894.36

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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.