Home / 543,342.40-814,977.15-143,974.60

Finding the Fourth Proportional to 543,342.40, 814,977.15 and 143,974.60

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Solution

The fourth proportional to 543,342.40, 814,977.15 and 143,974.60 is: 215,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,342.40 : 814,977.15 = 143,974.60 : x
  2. Step 2: Convert to fraction form
    543,342.40/814,977.15 = 143,974.60/x
  3. Step 3: Cross multiply
    543,342.40x = 814,977.15 × 143,974.60
  4. Step 4: Simplify right side
    543,342.40x = 117,336,009,180.39
  5. Step 5: Solve for x
    x = 117,336,009,180.39/543,342.40
  6. Step 6: Final answer
    x = 215,952.24

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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.