Home / 257,541.63-386,306.55-68,015.36

Finding the Fourth Proportional to 257,541.63, 386,306.55 and 68,015.36

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Solution

The fourth proportional to 257,541.63, 386,306.55 and 68,015.36 is: 102,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,541.63 : 386,306.55 = 68,015.36 : x
  2. Step 2: Convert to fraction form
    257,541.63/386,306.55 = 68,015.36/x
  3. Step 3: Cross multiply
    257,541.63x = 386,306.55 × 68,015.36
  4. Step 4: Simplify right side
    257,541.63x = 26,274,778,691.58
  5. Step 5: Solve for x
    x = 26,274,778,691.58/257,541.63
  6. Step 6: Final answer
    x = 102,021.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.