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Finding the Fourth Proportional to 421,773.88, 582,055.25 and 230,790.46

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Solution

The fourth proportional to 421,773.88, 582,055.25 and 230,790.46 is: 318,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,773.88 : 582,055.25 = 230,790.46 : x
  2. Step 2: Convert to fraction form
    421,773.88/582,055.25 = 230,790.46/x
  3. Step 3: Cross multiply
    421,773.88x = 582,055.25 × 230,790.46
  4. Step 4: Simplify right side
    421,773.88x = 134,332,798,892.92
  5. Step 5: Solve for x
    x = 134,332,798,892.92/421,773.88
  6. Step 6: Final answer
    x = 318,494.83

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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.