Home / 319,878.02-479,884.68-120,200.13

Finding the Fourth Proportional to 319,878.02, 479,884.68 and 120,200.13

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Solution

The fourth proportional to 319,878.02, 479,884.68 and 120,200.13 is: 180,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,878.02 : 479,884.68 = 120,200.13 : x
  2. Step 2: Convert to fraction form
    319,878.02/479,884.68 = 120,200.13/x
  3. Step 3: Cross multiply
    319,878.02x = 479,884.68 × 120,200.13
  4. Step 4: Simplify right side
    319,878.02x = 57,682,200,921.01
  5. Step 5: Solve for x
    x = 57,682,200,921.01/319,878.02
  6. Step 6: Final answer
    x = 180,325.62

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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.