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Finding the Fourth Proportional to 260,660.80, 391,574.40 and 250,033.60

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Solution

The fourth proportional to 260,660.80, 391,574.40 and 250,033.60 is: 375,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,660.80 : 391,574.40 = 250,033.60 : x
  2. Step 2: Convert to fraction form
    260,660.80/391,574.40 = 250,033.60/x
  3. Step 3: Cross multiply
    260,660.80x = 391,574.40 × 250,033.60
  4. Step 4: Simplify right side
    260,660.80x = 97,906,756,899.84
  5. Step 5: Solve for x
    x = 97,906,756,899.84/260,660.80
  6. Step 6: Final answer
    x = 375,609.82

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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.