Home / 260,344.28-390,366.92-102,486.60

Finding the Fourth Proportional to 260,344.28, 390,366.92 and 102,486.60

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Solution

The fourth proportional to 260,344.28, 390,366.92 and 102,486.60 is: 153,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,344.28 : 390,366.92 = 102,486.60 : x
  2. Step 2: Convert to fraction form
    260,344.28/390,366.92 = 102,486.60/x
  3. Step 3: Cross multiply
    260,344.28x = 390,366.92 × 102,486.60
  4. Step 4: Simplify right side
    260,344.28x = 40,007,378,383.27
  5. Step 5: Solve for x
    x = 40,007,378,383.27/260,344.28
  6. Step 6: Final answer
    x = 153,671.05

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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.