Home / 221,085.80-331,434.30-132,374.60

Finding the Fourth Proportional to 221,085.80, 331,434.30 and 132,374.60

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Solution

The fourth proportional to 221,085.80, 331,434.30 and 132,374.60 is: 198,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,085.80 : 331,434.30 = 132,374.60 : x
  2. Step 2: Convert to fraction form
    221,085.80/331,434.30 = 132,374.60/x
  3. Step 3: Cross multiply
    221,085.80x = 331,434.30 × 132,374.60
  4. Step 4: Simplify right side
    221,085.80x = 43,873,482,888.78
  5. Step 5: Solve for x
    x = 43,873,482,888.78/221,085.80
  6. Step 6: Final answer
    x = 198,445.50

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1.5x scale

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.