Home / 309,785.04-464,705.28-120,240.96

Finding the Fourth Proportional to 309,785.04, 464,705.28 and 120,240.96

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Solution

The fourth proportional to 309,785.04, 464,705.28 and 120,240.96 is: 180,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,785.04 : 464,705.28 = 120,240.96 : x
  2. Step 2: Convert to fraction form
    309,785.04/464,705.28 = 120,240.96/x
  3. Step 3: Cross multiply
    309,785.04x = 464,705.28 × 120,240.96
  4. Step 4: Simplify right side
    309,785.04x = 55,876,608,984.27
  5. Step 5: Solve for x
    x = 55,876,608,984.27/309,785.04
  6. Step 6: Final answer
    x = 180,372.20

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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.