Home / 154,337.55-231,998.40-145,480.20

Finding the Fourth Proportional to 154,337.55, 231,998.40 and 145,480.20

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Solution

The fourth proportional to 154,337.55, 231,998.40 and 145,480.20 is: 218,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,337.55 : 231,998.40 = 145,480.20 : x
  2. Step 2: Convert to fraction form
    154,337.55/231,998.40 = 145,480.20/x
  3. Step 3: Cross multiply
    154,337.55x = 231,998.40 × 145,480.20
  4. Step 4: Simplify right side
    154,337.55x = 33,751,173,631.68
  5. Step 5: Solve for x
    x = 33,751,173,631.68/154,337.55
  6. Step 6: Final answer
    x = 218,684.14

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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.