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Finding the Fourth Proportional to 421,812.92, 582,101.85 and 230,826.32

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Solution

The fourth proportional to 421,812.92, 582,101.85 and 230,826.32 is: 318,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,812.92 : 582,101.85 = 230,826.32 : x
  2. Step 2: Convert to fraction form
    421,812.92/582,101.85 = 230,826.32/x
  3. Step 3: Cross multiply
    421,812.92x = 582,101.85 × 230,826.32
  4. Step 4: Simplify right side
    421,812.92x = 134,364,427,900.69
  5. Step 5: Solve for x
    x = 134,364,427,900.69/421,812.92
  6. Step 6: Final answer
    x = 318,540.33

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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.