Home / 260,084.51-390,140.25-82,605.41

Finding the Fourth Proportional to 260,084.51, 390,140.25 and 82,605.41

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Solution

The fourth proportional to 260,084.51, 390,140.25 and 82,605.41 is: 123,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,084.51 : 390,140.25 = 82,605.41 : x
  2. Step 2: Convert to fraction form
    260,084.51/390,140.25 = 82,605.41/x
  3. Step 3: Cross multiply
    260,084.51x = 390,140.25 × 82,605.41
  4. Step 4: Simplify right side
    260,084.51x = 32,227,693,358.05
  5. Step 5: Solve for x
    x = 32,227,693,358.05/260,084.51
  6. Step 6: Final answer
    x = 123,912.39

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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.