Home / 421,904.46-582,229.68-228,312.15

Finding the Fourth Proportional to 421,904.46, 582,229.68 and 228,312.15

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Solution

The fourth proportional to 421,904.46, 582,229.68 and 228,312.15 is: 315,071.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,904.46 : 582,229.68 = 228,312.15 : x
  2. Step 2: Convert to fraction form
    421,904.46/582,229.68 = 228,312.15/x
  3. Step 3: Cross multiply
    421,904.46x = 582,229.68 × 228,312.15
  4. Step 4: Simplify right side
    421,904.46x = 132,930,110,034.61
  5. Step 5: Solve for x
    x = 132,930,110,034.61/421,904.46
  6. Step 6: Final answer
    x = 315,071.59

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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.