Home / 248,976.74-343,478.12-153,538.76

Finding the Fourth Proportional to 248,976.74, 343,478.12 and 153,538.76

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Solution

The fourth proportional to 248,976.74, 343,478.12 and 153,538.76 is: 211,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,976.74 : 343,478.12 = 153,538.76 : x
  2. Step 2: Convert to fraction form
    248,976.74/343,478.12 = 153,538.76/x
  3. Step 3: Cross multiply
    248,976.74x = 343,478.12 × 153,538.76
  4. Step 4: Simplify right side
    248,976.74x = 52,737,202,146.85
  5. Step 5: Solve for x
    x = 52,737,202,146.85/248,976.74
  6. Step 6: Final answer
    x = 211,815.78

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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.