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Finding the Fourth Proportional to 151,002.80, 226,504.20 and 81,018.80

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Solution

The fourth proportional to 151,002.80, 226,504.20 and 81,018.80 is: 121,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,002.80 : 226,504.20 = 81,018.80 : x
  2. Step 2: Convert to fraction form
    151,002.80/226,504.20 = 81,018.80/x
  3. Step 3: Cross multiply
    151,002.80x = 226,504.20 × 81,018.80
  4. Step 4: Simplify right side
    151,002.80x = 18,351,098,478.96
  5. Step 5: Solve for x
    x = 18,351,098,478.96/151,002.80
  6. Step 6: Final answer
    x = 121,528.20

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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.