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Finding the Fourth Proportional to 576,186.45, 864,279.68 and 155,504.85

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Solution

The fourth proportional to 576,186.45, 864,279.68 and 155,504.85 is: 233,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,186.45 : 864,279.68 = 155,504.85 : x
  2. Step 2: Convert to fraction form
    576,186.45/864,279.68 = 155,504.85/x
  3. Step 3: Cross multiply
    576,186.45x = 864,279.68 × 155,504.85
  4. Step 4: Simplify right side
    576,186.45x = 134,399,681,218.92
  5. Step 5: Solve for x
    x = 134,399,681,218.92/576,186.45
  6. Step 6: Final answer
    x = 233,257.28

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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.