Home / 320,434.10-479,995.05-162,751.40

Finding the Fourth Proportional to 320,434.10, 479,995.05 and 162,751.40

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Solution

The fourth proportional to 320,434.10, 479,995.05 and 162,751.40 is: 243,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,434.10 : 479,995.05 = 162,751.40 : x
  2. Step 2: Convert to fraction form
    320,434.10/479,995.05 = 162,751.40/x
  3. Step 3: Cross multiply
    320,434.10x = 479,995.05 × 162,751.40
  4. Step 4: Simplify right side
    320,434.10x = 78,119,866,380.57
  5. Step 5: Solve for x
    x = 78,119,866,380.57/320,434.10
  6. Step 6: Final answer
    x = 243,793.86

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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.