Home / 371,837.12-513,138.48-202,071.28

Finding the Fourth Proportional to 371,837.12, 513,138.48 and 202,071.28

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Solution

The fourth proportional to 371,837.12, 513,138.48 and 202,071.28 is: 278,860.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,837.12 : 513,138.48 = 202,071.28 : x
  2. Step 2: Convert to fraction form
    371,837.12/513,138.48 = 202,071.28/x
  3. Step 3: Cross multiply
    371,837.12x = 513,138.48 × 202,071.28
  4. Step 4: Simplify right side
    371,837.12x = 103,690,549,470.85
  5. Step 5: Solve for x
    x = 103,690,549,470.85/371,837.12
  6. Step 6: Final answer
    x = 278,860.13

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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.