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Finding the Fourth Proportional to 443,388.18, 611,876.22 and 252,401.38

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Solution

The fourth proportional to 443,388.18, 611,876.22 and 252,401.38 is: 348,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,388.18 : 611,876.22 = 252,401.38 : x
  2. Step 2: Convert to fraction form
    443,388.18/611,876.22 = 252,401.38/x
  3. Step 3: Cross multiply
    443,388.18x = 611,876.22 × 252,401.38
  4. Step 4: Simplify right side
    443,388.18x = 154,438,402,317.18
  5. Step 5: Solve for x
    x = 154,438,402,317.18/443,388.18
  6. Step 6: Final answer
    x = 348,314.21

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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.