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Finding the Fourth Proportional to 353,340, 487,609.20 and 202,524.48

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Solution

The fourth proportional to 353,340, 487,609.20 and 202,524.48 is: 279,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,340 : 487,609.20 = 202,524.48 : x
  2. Step 2: Convert to fraction form
    353,340/487,609.20 = 202,524.48/x
  3. Step 3: Cross multiply
    353,340x = 487,609.20 × 202,524.48
  4. Step 4: Simplify right side
    353,340x = 98,752,799,673.22
  5. Step 5: Solve for x
    x = 98,752,799,673.22/353,340
  6. Step 6: Final answer
    x = 279,483.78

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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.