Home / 311,541.28-429,935.88-173,723.38

Finding the Fourth Proportional to 311,541.28, 429,935.88 and 173,723.38

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Solution

The fourth proportional to 311,541.28, 429,935.88 and 173,723.38 is: 239,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,541.28 : 429,935.88 = 173,723.38 : x
  2. Step 2: Convert to fraction form
    311,541.28/429,935.88 = 173,723.38/x
  3. Step 3: Cross multiply
    311,541.28x = 429,935.88 × 173,723.38
  4. Step 4: Simplify right side
    311,541.28x = 74,689,914,256.87
  5. Step 5: Solve for x
    x = 74,689,914,256.87/311,541.28
  6. Step 6: Final answer
    x = 239,743.23

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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.