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Finding the Fourth Proportional to 218,221.74, 301,100.86 and 127,560.16

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Solution

The fourth proportional to 218,221.74, 301,100.86 and 127,560.16 is: 176,006.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,221.74 : 301,100.86 = 127,560.16 : x
  2. Step 2: Convert to fraction form
    218,221.74/301,100.86 = 127,560.16/x
  3. Step 3: Cross multiply
    218,221.74x = 301,100.86 × 127,560.16
  4. Step 4: Simplify right side
    218,221.74x = 38,408,474,413.56
  5. Step 5: Solve for x
    x = 38,408,474,413.56/218,221.74
  6. Step 6: Final answer
    x = 176,006.64

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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.