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Finding the Fourth Proportional to 218,593.05, 301,659.09 and 126,730.24

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Solution

The fourth proportional to 218,593.05, 301,659.09 and 126,730.24 is: 174,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,593.05 : 301,659.09 = 126,730.24 : x
  2. Step 2: Convert to fraction form
    218,593.05/301,659.09 = 126,730.24/x
  3. Step 3: Cross multiply
    218,593.05x = 301,659.09 × 126,730.24
  4. Step 4: Simplify right side
    218,593.05x = 38,229,327,644.50
  5. Step 5: Solve for x
    x = 38,229,327,644.50/218,593.05
  6. Step 6: Final answer
    x = 174,888.12

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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.