Home / 331,821.72-457,908.12-180,918.72

Finding the Fourth Proportional to 331,821.72, 457,908.12 and 180,918.72

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Solution

The fourth proportional to 331,821.72, 457,908.12 and 180,918.72 is: 249,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,821.72 : 457,908.12 = 180,918.72 : x
  2. Step 2: Convert to fraction form
    331,821.72/457,908.12 = 180,918.72/x
  3. Step 3: Cross multiply
    331,821.72x = 457,908.12 × 180,918.72
  4. Step 4: Simplify right side
    331,821.72x = 82,844,150,948.01
  5. Step 5: Solve for x
    x = 82,844,150,948.01/331,821.72
  6. Step 6: Final answer
    x = 249,664.64

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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.