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Finding the Fourth Proportional to 266,093.12, 399,144 and 88,597.28

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Solution

The fourth proportional to 266,093.12, 399,144 and 88,597.28 is: 132,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,093.12 : 399,144 = 88,597.28 : x
  2. Step 2: Convert to fraction form
    266,093.12/399,144 = 88,597.28/x
  3. Step 3: Cross multiply
    266,093.12x = 399,144 × 88,597.28
  4. Step 4: Simplify right side
    266,093.12x = 35,363,072,728.32
  5. Step 5: Solve for x
    x = 35,363,072,728.32/266,093.12
  6. Step 6: Final answer
    x = 132,897.36

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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.