Home / 320,530.02-480,820.32-107,299.20

Finding the Fourth Proportional to 320,530.02, 480,820.32 and 107,299.20

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Solution

The fourth proportional to 320,530.02, 480,820.32 and 107,299.20 is: 160,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,530.02 : 480,820.32 = 107,299.20 : x
  2. Step 2: Convert to fraction form
    320,530.02/480,820.32 = 107,299.20/x
  3. Step 3: Cross multiply
    320,530.02x = 480,820.32 × 107,299.20
  4. Step 4: Simplify right side
    320,530.02x = 51,591,635,679.74
  5. Step 5: Solve for x
    x = 51,591,635,679.74/320,530.02
  6. Step 6: Final answer
    x = 160,957.27

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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.