Home / 240,458.80-331,804.28-138,517.60

Finding the Fourth Proportional to 240,458.80, 331,804.28 and 138,517.60

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Solution

The fourth proportional to 240,458.80, 331,804.28 and 138,517.60 is: 191,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,458.80 : 331,804.28 = 138,517.60 : x
  2. Step 2: Convert to fraction form
    240,458.80/331,804.28 = 138,517.60/x
  3. Step 3: Cross multiply
    240,458.80x = 331,804.28 × 138,517.60
  4. Step 4: Simplify right side
    240,458.80x = 45,960,732,535.33
  5. Step 5: Solve for x
    x = 45,960,732,535.33/240,458.80
  6. Step 6: Final answer
    x = 191,137.66

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1.5x scale

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.