Home / 353,371.22-487,643.55-202,458.50

Finding the Fourth Proportional to 353,371.22, 487,643.55 and 202,458.50

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Solution

The fourth proportional to 353,371.22, 487,643.55 and 202,458.50 is: 279,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,371.22 : 487,643.55 = 202,458.50 : x
  2. Step 2: Convert to fraction form
    353,371.22/487,643.55 = 202,458.50/x
  3. Step 3: Cross multiply
    353,371.22x = 487,643.55 × 202,458.50
  4. Step 4: Simplify right side
    353,371.22x = 98,727,581,667.68
  5. Step 5: Solve for x
    x = 98,727,581,667.68/353,371.22
  6. Step 6: Final answer
    x = 279,387.73

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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.