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Finding the Fourth Proportional to 315,174.68, 472,766.19 and 99,026.39

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Solution

The fourth proportional to 315,174.68, 472,766.19 and 99,026.39 is: 148,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,174.68 : 472,766.19 = 99,026.39 : x
  2. Step 2: Convert to fraction form
    315,174.68/472,766.19 = 99,026.39/x
  3. Step 3: Cross multiply
    315,174.68x = 472,766.19 × 99,026.39
  4. Step 4: Simplify right side
    315,174.68x = 46,816,326,745.92
  5. Step 5: Solve for x
    x = 46,816,326,745.92/315,174.68
  6. Step 6: Final answer
    x = 148,540.89

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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.