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Finding the Fourth Proportional to 225,613.46, 311,335.89 and 135,019.27

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Solution

The fourth proportional to 225,613.46, 311,335.89 and 135,019.27 is: 186,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,613.46 : 311,335.89 = 135,019.27 : x
  2. Step 2: Convert to fraction form
    225,613.46/311,335.89 = 135,019.27/x
  3. Step 3: Cross multiply
    225,613.46x = 311,335.89 × 135,019.27
  4. Step 4: Simplify right side
    225,613.46x = 42,036,344,592.60
  5. Step 5: Solve for x
    x = 42,036,344,592.60/225,613.46
  6. Step 6: Final answer
    x = 186,320.20

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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.