Home / 431,274.36-647,036.46-178,508.18

Finding the Fourth Proportional to 431,274.36, 647,036.46 and 178,508.18

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Solution

The fourth proportional to 431,274.36, 647,036.46 and 178,508.18 is: 267,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,274.36 : 647,036.46 = 178,508.18 : x
  2. Step 2: Convert to fraction form
    431,274.36/647,036.46 = 178,508.18/x
  3. Step 3: Cross multiply
    431,274.36x = 647,036.46 × 178,508.18
  4. Step 4: Simplify right side
    431,274.36x = 115,501,300,868.24
  5. Step 5: Solve for x
    x = 115,501,300,868.24/431,274.36
  6. Step 6: Final answer
    x = 267,813.98

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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.