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Finding the Fourth Proportional to 151,758.60, 227,637.90 and 80,899.80

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Solution

The fourth proportional to 151,758.60, 227,637.90 and 80,899.80 is: 121,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,758.60 : 227,637.90 = 80,899.80 : x
  2. Step 2: Convert to fraction form
    151,758.60/227,637.90 = 80,899.80/x
  3. Step 3: Cross multiply
    151,758.60x = 227,637.90 × 80,899.80
  4. Step 4: Simplify right side
    151,758.60x = 18,415,860,582.42
  5. Step 5: Solve for x
    x = 18,415,860,582.42/151,758.60
  6. Step 6: Final answer
    x = 121,349.70

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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.