Home / 199,134.40-298,507.20-178,139.20

Finding the Fourth Proportional to 199,134.40, 298,507.20 and 178,139.20

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Solution

The fourth proportional to 199,134.40, 298,507.20 and 178,139.20 is: 267,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,134.40 : 298,507.20 = 178,139.20 : x
  2. Step 2: Convert to fraction form
    199,134.40/298,507.20 = 178,139.20/x
  3. Step 3: Cross multiply
    199,134.40x = 298,507.20 × 178,139.20
  4. Step 4: Simplify right side
    199,134.40x = 53,175,833,802.24
  5. Step 5: Solve for x
    x = 53,175,833,802.24/199,134.40
  6. Step 6: Final answer
    x = 267,034.90

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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.