Home / 320,250.24-480,064.32-133,315.20

Finding the Fourth Proportional to 320,250.24, 480,064.32 and 133,315.20

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Solution

The fourth proportional to 320,250.24, 480,064.32 and 133,315.20 is: 199,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,250.24 : 480,064.32 = 133,315.20 : x
  2. Step 2: Convert to fraction form
    320,250.24/480,064.32 = 133,315.20/x
  3. Step 3: Cross multiply
    320,250.24x = 480,064.32 × 133,315.20
  4. Step 4: Simplify right side
    320,250.24x = 63,999,870,833.66
  5. Step 5: Solve for x
    x = 63,999,870,833.66/320,250.24
  6. Step 6: Final answer
    x = 199,843.32

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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.