Home / 421,903.08-582,227.79-228,310.76

Finding the Fourth Proportional to 421,903.08, 582,227.79 and 228,310.76

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Solution

The fourth proportional to 421,903.08, 582,227.79 and 228,310.76 is: 315,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,903.08 : 582,227.79 = 228,310.76 : x
  2. Step 2: Convert to fraction form
    421,903.08/582,227.79 = 228,310.76/x
  3. Step 3: Cross multiply
    421,903.08x = 582,227.79 × 228,310.76
  4. Step 4: Simplify right side
    421,903.08x = 132,928,869,827.43
  5. Step 5: Solve for x
    x = 132,928,869,827.43/421,903.08
  6. Step 6: Final answer
    x = 315,069.68

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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.