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Finding the Fourth Proportional to 147,190.80, 220,348.80 and 131,444.40

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Solution

The fourth proportional to 147,190.80, 220,348.80 and 131,444.40 is: 196,775.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,190.80 : 220,348.80 = 131,444.40 : x
  2. Step 2: Convert to fraction form
    147,190.80/220,348.80 = 131,444.40/x
  3. Step 3: Cross multiply
    147,190.80x = 220,348.80 × 131,444.40
  4. Step 4: Simplify right side
    147,190.80x = 28,963,615,806.72
  5. Step 5: Solve for x
    x = 28,963,615,806.72/147,190.80
  6. Step 6: Final answer
    x = 196,775.99

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1.5x scale

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.