Home / 148,276.80-222,431.40-143,611.20

Finding the Fourth Proportional to 148,276.80, 222,431.40 and 143,611.20

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Solution

The fourth proportional to 148,276.80, 222,431.40 and 143,611.20 is: 215,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,276.80 : 222,431.40 = 143,611.20 : x
  2. Step 2: Convert to fraction form
    148,276.80/222,431.40 = 143,611.20/x
  3. Step 3: Cross multiply
    148,276.80x = 222,431.40 × 143,611.20
  4. Step 4: Simplify right side
    148,276.80x = 31,943,640,271.68
  5. Step 5: Solve for x
    x = 31,943,640,271.68/148,276.80
  6. Step 6: Final answer
    x = 215,432.49

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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.