Home / 260,446.20-390,596.40-83,007.60

Finding the Fourth Proportional to 260,446.20, 390,596.40 and 83,007.60

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Solution

The fourth proportional to 260,446.20, 390,596.40 and 83,007.60 is: 124,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,446.20 : 390,596.40 = 83,007.60 : x
  2. Step 2: Convert to fraction form
    260,446.20/390,596.40 = 83,007.60/x
  3. Step 3: Cross multiply
    260,446.20x = 390,596.40 × 83,007.60
  4. Step 4: Simplify right side
    260,446.20x = 32,422,469,732.64
  5. Step 5: Solve for x
    x = 32,422,469,732.64/260,446.20
  6. Step 6: Final answer
    x = 124,488.17

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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.