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Finding the Fourth Proportional to 207,337.20, 311,005.80 and 136,066.80

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Solution

The fourth proportional to 207,337.20, 311,005.80 and 136,066.80 is: 204,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,337.20 : 311,005.80 = 136,066.80 : x
  2. Step 2: Convert to fraction form
    207,337.20/311,005.80 = 136,066.80/x
  3. Step 3: Cross multiply
    207,337.20x = 311,005.80 × 136,066.80
  4. Step 4: Simplify right side
    207,337.20x = 42,317,563,987.44
  5. Step 5: Solve for x
    x = 42,317,563,987.44/207,337.20
  6. Step 6: Final answer
    x = 204,100.20

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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.