Home / 215,892.32-297,829.72-140,413.28

Finding the Fourth Proportional to 215,892.32, 297,829.72 and 140,413.28

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Solution

The fourth proportional to 215,892.32, 297,829.72 and 140,413.28 is: 193,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,892.32 : 297,829.72 = 140,413.28 : x
  2. Step 2: Convert to fraction form
    215,892.32/297,829.72 = 140,413.28/x
  3. Step 3: Cross multiply
    215,892.32x = 297,829.72 × 140,413.28
  4. Step 4: Simplify right side
    215,892.32x = 41,819,247,866.68
  5. Step 5: Solve for x
    x = 41,819,247,866.68/215,892.32
  6. Step 6: Final answer
    x = 193,704.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.