Home / 320,987.18-481,479.62-96,346.64

Finding the Fourth Proportional to 320,987.18, 481,479.62 and 96,346.64

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Solution

The fourth proportional to 320,987.18, 481,479.62 and 96,346.64 is: 144,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,987.18 : 481,479.62 = 96,346.64 : x
  2. Step 2: Convert to fraction form
    320,987.18/481,479.62 = 96,346.64/x
  3. Step 3: Cross multiply
    320,987.18x = 481,479.62 × 96,346.64
  4. Step 4: Simplify right side
    320,987.18x = 46,388,944,337.44
  5. Step 5: Solve for x
    x = 46,388,944,337.44/320,987.18
  6. Step 6: Final answer
    x = 144,519.62

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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.