Home / 231,306.40-346,818.80-90,896.80

Finding the Fourth Proportional to 231,306.40, 346,818.80 and 90,896.80

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Solution

The fourth proportional to 231,306.40, 346,818.80 and 90,896.80 is: 136,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,306.40 : 346,818.80 = 90,896.80 : x
  2. Step 2: Convert to fraction form
    231,306.40/346,818.80 = 90,896.80/x
  3. Step 3: Cross multiply
    231,306.40x = 346,818.80 × 90,896.80
  4. Step 4: Simplify right side
    231,306.40x = 31,524,719,099.84
  5. Step 5: Solve for x
    x = 31,524,719,099.84/231,306.40
  6. Step 6: Final answer
    x = 136,289.87

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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.