Home / 249,379.54-374,121.92-80,886.78

Finding the Fourth Proportional to 249,379.54, 374,121.92 and 80,886.78

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Solution

The fourth proportional to 249,379.54, 374,121.92 and 80,886.78 is: 121,347.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,379.54 : 374,121.92 = 80,886.78 : x
  2. Step 2: Convert to fraction form
    249,379.54/374,121.92 = 80,886.78/x
  3. Step 3: Cross multiply
    249,379.54x = 374,121.92 × 80,886.78
  4. Step 4: Simplify right side
    249,379.54x = 30,261,517,436.22
  5. Step 5: Solve for x
    x = 30,261,517,436.22/249,379.54
  6. Step 6: Final answer
    x = 121,347.23

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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.