Home / 260,583.28-390,883.38-89,803.24

Finding the Fourth Proportional to 260,583.28, 390,883.38 and 89,803.24

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Solution

The fourth proportional to 260,583.28, 390,883.38 and 89,803.24 is: 134,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,583.28 : 390,883.38 = 89,803.24 : x
  2. Step 2: Convert to fraction form
    260,583.28/390,883.38 = 89,803.24/x
  3. Step 3: Cross multiply
    260,583.28x = 390,883.38 × 89,803.24
  4. Step 4: Simplify right side
    260,583.28x = 35,102,593,986.15
  5. Step 5: Solve for x
    x = 35,102,593,986.15/260,583.28
  6. Step 6: Final answer
    x = 134,707.78

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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.