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Finding the Fourth Proportional to 235,413.20, 324,872.96 and 127,980.87

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Solution

The fourth proportional to 235,413.20, 324,872.96 and 127,980.87 is: 176,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,413.20 : 324,872.96 = 127,980.87 : x
  2. Step 2: Convert to fraction form
    235,413.20/324,872.96 = 127,980.87/x
  3. Step 3: Cross multiply
    235,413.20x = 324,872.96 × 127,980.87
  4. Step 4: Simplify right side
    235,413.20x = 41,577,523,420.37
  5. Step 5: Solve for x
    x = 41,577,523,420.37/235,413.20
  6. Step 6: Final answer
    x = 176,615.09

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1.5x scale

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.