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Finding the Fourth Proportional to 225,371.16, 310,965.48 and 129,852.72

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Solution

The fourth proportional to 225,371.16, 310,965.48 and 129,852.72 is: 179,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,371.16 : 310,965.48 = 129,852.72 : x
  2. Step 2: Convert to fraction form
    225,371.16/310,965.48 = 129,852.72/x
  3. Step 3: Cross multiply
    225,371.16x = 310,965.48 × 129,852.72
  4. Step 4: Simplify right side
    225,371.16x = 40,379,713,404.11
  5. Step 5: Solve for x
    x = 40,379,713,404.11/225,371.16
  6. Step 6: Final answer
    x = 179,169.83

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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.