Home / 260,454.94-390,711.06-82,899.70

Finding the Fourth Proportional to 260,454.94, 390,711.06 and 82,899.70

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Solution

The fourth proportional to 260,454.94, 390,711.06 and 82,899.70 is: 124,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,454.94 : 390,711.06 = 82,899.70 : x
  2. Step 2: Convert to fraction form
    260,454.94/390,711.06 = 82,899.70/x
  3. Step 3: Cross multiply
    260,454.94x = 390,711.06 × 82,899.70
  4. Step 4: Simplify right side
    260,454.94x = 32,389,829,660.68
  5. Step 5: Solve for x
    x = 32,389,829,660.68/260,454.94
  6. Step 6: Final answer
    x = 124,358.67

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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.