Home / 260,151.29-390,294.27-80,232.74

Finding the Fourth Proportional to 260,151.29, 390,294.27 and 80,232.74

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Solution

The fourth proportional to 260,151.29, 390,294.27 and 80,232.74 is: 120,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,151.29 : 390,294.27 = 80,232.74 : x
  2. Step 2: Convert to fraction form
    260,151.29/390,294.27 = 80,232.74/x
  3. Step 3: Cross multiply
    260,151.29x = 390,294.27 × 80,232.74
  4. Step 4: Simplify right side
    260,151.29x = 31,314,378,287.24
  5. Step 5: Solve for x
    x = 31,314,378,287.24/260,151.29
  6. Step 6: Final answer
    x = 120,369.88

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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.