Home / 311,541.78-429,936.57-173,723.88

Finding the Fourth Proportional to 311,541.78, 429,936.57 and 173,723.88

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Solution

The fourth proportional to 311,541.78, 429,936.57 and 173,723.88 is: 239,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,541.78 : 429,936.57 = 173,723.88 : x
  2. Step 2: Convert to fraction form
    311,541.78/429,936.57 = 173,723.88/x
  3. Step 3: Cross multiply
    311,541.78x = 429,936.57 × 173,723.88
  4. Step 4: Simplify right side
    311,541.78x = 74,690,249,094.29
  5. Step 5: Solve for x
    x = 74,690,249,094.29/311,541.78
  6. Step 6: Final answer
    x = 239,743.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.