Home / 243,489.31-336,048.63-140,121.39

Finding the Fourth Proportional to 243,489.31, 336,048.63 and 140,121.39

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Solution

The fourth proportional to 243,489.31, 336,048.63 and 140,121.39 is: 193,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.31 : 336,048.63 = 140,121.39 : x
  2. Step 2: Convert to fraction form
    243,489.31/336,048.63 = 140,121.39/x
  3. Step 3: Cross multiply
    243,489.31x = 336,048.63 × 140,121.39
  4. Step 4: Simplify right side
    243,489.31x = 47,087,601,143.20
  5. Step 5: Solve for x
    x = 47,087,601,143.20/243,489.31
  6. Step 6: Final answer
    x = 193,386.73

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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.