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Finding the Fourth Proportional to 580,318.26, 870,197.22 and 243,268.38

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Solution

The fourth proportional to 580,318.26, 870,197.22 and 243,268.38 is: 364,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,318.26 : 870,197.22 = 243,268.38 : x
  2. Step 2: Convert to fraction form
    580,318.26/870,197.22 = 243,268.38/x
  3. Step 3: Cross multiply
    580,318.26x = 870,197.22 × 243,268.38
  4. Step 4: Simplify right side
    580,318.26x = 211,691,467,989.90
  5. Step 5: Solve for x
    x = 211,691,467,989.90/580,318.26
  6. Step 6: Final answer
    x = 364,785.12

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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.