Home / 330,865.10-456,229.10-228,713.22

Finding the Fourth Proportional to 330,865.10, 456,229.10 and 228,713.22

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Solution

The fourth proportional to 330,865.10, 456,229.10 and 228,713.22 is: 315,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,865.10 : 456,229.10 = 228,713.22 : x
  2. Step 2: Convert to fraction form
    330,865.10/456,229.10 = 228,713.22/x
  3. Step 3: Cross multiply
    330,865.10x = 456,229.10 × 228,713.22
  4. Step 4: Simplify right side
    330,865.10x = 104,345,626,518.70
  5. Step 5: Solve for x
    x = 104,345,626,518.70/330,865.10
  6. Step 6: Final answer
    x = 315,372.12

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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.