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Finding the Fourth Proportional to 225,317.42, 337,854.89 and 90,313.73

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Solution

The fourth proportional to 225,317.42, 337,854.89 and 90,313.73 is: 135,421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,317.42 : 337,854.89 = 90,313.73 : x
  2. Step 2: Convert to fraction form
    225,317.42/337,854.89 = 90,313.73/x
  3. Step 3: Cross multiply
    225,317.42x = 337,854.89 × 90,313.73
  4. Step 4: Simplify right side
    225,317.42x = 30,512,933,173.80
  5. Step 5: Solve for x
    x = 30,512,933,173.80/225,317.42
  6. Step 6: Final answer
    x = 135,421.99

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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.