Home / 229,822.72-317,153.28-129,221.44

Finding the Fourth Proportional to 229,822.72, 317,153.28 and 129,221.44

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Solution

The fourth proportional to 229,822.72, 317,153.28 and 129,221.44 is: 178,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,822.72 : 317,153.28 = 129,221.44 : x
  2. Step 2: Convert to fraction form
    229,822.72/317,153.28 = 129,221.44/x
  3. Step 3: Cross multiply
    229,822.72x = 317,153.28 × 129,221.44
  4. Step 4: Simplify right side
    229,822.72x = 40,983,003,542.32
  5. Step 5: Solve for x
    x = 40,983,003,542.32/229,822.72
  6. Step 6: Final answer
    x = 178,324.42

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1.5x scale

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.