Home / 260,084.56-390,140.34-82,605.46

Finding the Fourth Proportional to 260,084.56, 390,140.34 and 82,605.46

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Solution

The fourth proportional to 260,084.56, 390,140.34 and 82,605.46 is: 123,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,084.56 : 390,140.34 = 82,605.46 : x
  2. Step 2: Convert to fraction form
    260,084.56/390,140.34 = 82,605.46/x
  3. Step 3: Cross multiply
    260,084.56x = 390,140.34 × 82,605.46
  4. Step 4: Simplify right side
    260,084.56x = 32,227,722,250.26
  5. Step 5: Solve for x
    x = 32,227,722,250.26/260,084.56
  6. Step 6: Final answer
    x = 123,912.48

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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.