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Finding the Fourth Proportional to 371,861.46, 513,170.37 and 220,955.22

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Solution

The fourth proportional to 371,861.46, 513,170.37 and 220,955.22 is: 304,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,861.46 : 513,170.37 = 220,955.22 : x
  2. Step 2: Convert to fraction form
    371,861.46/513,170.37 = 220,955.22/x
  3. Step 3: Cross multiply
    371,861.46x = 513,170.37 × 220,955.22
  4. Step 4: Simplify right side
    371,861.46x = 113,387,672,000.83
  5. Step 5: Solve for x
    x = 113,387,672,000.83/371,861.46
  6. Step 6: Final answer
    x = 304,919.13

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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.