Home / 281,931.45-422,890.13-82,253.59

Finding the Fourth Proportional to 281,931.45, 422,890.13 and 82,253.59

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Solution

The fourth proportional to 281,931.45, 422,890.13 and 82,253.59 is: 123,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,931.45 : 422,890.13 = 82,253.59 : x
  2. Step 2: Convert to fraction form
    281,931.45/422,890.13 = 82,253.59/x
  3. Step 3: Cross multiply
    281,931.45x = 422,890.13 × 82,253.59
  4. Step 4: Simplify right side
    281,931.45x = 34,784,230,516.48
  5. Step 5: Solve for x
    x = 34,784,230,516.48/281,931.45
  6. Step 6: Final answer
    x = 123,378.33

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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.