Home / 371,839.21-513,138.54-202,073.33

Finding the Fourth Proportional to 371,839.21, 513,138.54 and 202,073.33

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Solution

The fourth proportional to 371,839.21, 513,138.54 and 202,073.33 is: 278,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,839.21 : 513,138.54 = 202,073.33 : x
  2. Step 2: Convert to fraction form
    371,839.21/513,138.54 = 202,073.33/x
  3. Step 3: Cross multiply
    371,839.21x = 513,138.54 × 202,073.33
  4. Step 4: Simplify right side
    371,839.21x = 103,691,615,569.76
  5. Step 5: Solve for x
    x = 103,691,615,569.76/371,839.21
  6. Step 6: Final answer
    x = 278,861.44

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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.