Home / 421,933.20-582,245.28-230,909.64

Finding the Fourth Proportional to 421,933.20, 582,245.28 and 230,909.64

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Solution

The fourth proportional to 421,933.20, 582,245.28 and 230,909.64 is: 318,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,933.20 : 582,245.28 = 230,909.64 : x
  2. Step 2: Convert to fraction form
    421,933.20/582,245.28 = 230,909.64/x
  3. Step 3: Cross multiply
    421,933.20x = 582,245.28 × 230,909.64
  4. Step 4: Simplify right side
    421,933.20x = 134,446,047,996.50
  5. Step 5: Solve for x
    x = 134,446,047,996.50/421,933.20
  6. Step 6: Final answer
    x = 318,642.97

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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.