Home / 225,310.88-310,944.06-129,823.76

Finding the Fourth Proportional to 225,310.88, 310,944.06 and 129,823.76

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Solution

The fourth proportional to 225,310.88, 310,944.06 and 129,823.76 is: 179,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,310.88 : 310,944.06 = 129,823.76 : x
  2. Step 2: Convert to fraction form
    225,310.88/310,944.06 = 129,823.76/x
  3. Step 3: Cross multiply
    225,310.88x = 310,944.06 × 129,823.76
  4. Step 4: Simplify right side
    225,310.88x = 40,367,927,018.87
  5. Step 5: Solve for x
    x = 40,367,927,018.87/225,310.88
  6. Step 6: Final answer
    x = 179,165.46

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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.