Home / 256,620.30-384,369.50-130,043.27

Finding the Fourth Proportional to 256,620.30, 384,369.50 and 130,043.27

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Solution

The fourth proportional to 256,620.30, 384,369.50 and 130,043.27 is: 194,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,620.30 : 384,369.50 = 130,043.27 : x
  2. Step 2: Convert to fraction form
    256,620.30/384,369.50 = 130,043.27/x
  3. Step 3: Cross multiply
    256,620.30x = 384,369.50 × 130,043.27
  4. Step 4: Simplify right side
    256,620.30x = 49,984,667,954.30
  5. Step 5: Solve for x
    x = 49,984,667,954.30/256,620.30
  6. Step 6: Final answer
    x = 194,780.65

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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.