Home / 320,720.02-480,696.08-149,711.65

Finding the Fourth Proportional to 320,720.02, 480,696.08 and 149,711.65

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Solution

The fourth proportional to 320,720.02, 480,696.08 and 149,711.65 is: 224,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,720.02 : 480,696.08 = 149,711.65 : x
  2. Step 2: Convert to fraction form
    320,720.02/480,696.08 = 149,711.65/x
  3. Step 3: Cross multiply
    320,720.02x = 480,696.08 × 149,711.65
  4. Step 4: Simplify right side
    320,720.02x = 71,965,801,335.03
  5. Step 5: Solve for x
    x = 71,965,801,335.03/320,720.02
  6. Step 6: Final answer
    x = 224,388.24

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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.