Home / 309,919.60-464,879.40-239,849.20

Finding the Fourth Proportional to 309,919.60, 464,879.40 and 239,849.20

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Solution

The fourth proportional to 309,919.60, 464,879.40 and 239,849.20 is: 359,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,919.60 : 464,879.40 = 239,849.20 : x
  2. Step 2: Convert to fraction form
    309,919.60/464,879.40 = 239,849.20/x
  3. Step 3: Cross multiply
    309,919.60x = 464,879.40 × 239,849.20
  4. Step 4: Simplify right side
    309,919.60x = 111,500,952,186.48
  5. Step 5: Solve for x
    x = 111,500,952,186.48/309,919.60
  6. Step 6: Final answer
    x = 359,773.80

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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.