Home / 225,460.64-311,095.68-129,971.36

Finding the Fourth Proportional to 225,460.64, 311,095.68 and 129,971.36

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Solution

The fourth proportional to 225,460.64, 311,095.68 and 129,971.36 is: 179,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,460.64 : 311,095.68 = 129,971.36 : x
  2. Step 2: Convert to fraction form
    225,460.64/311,095.68 = 129,971.36/x
  3. Step 3: Cross multiply
    225,460.64x = 311,095.68 × 129,971.36
  4. Step 4: Simplify right side
    225,460.64x = 40,433,528,619.72
  5. Step 5: Solve for x
    x = 40,433,528,619.72/225,460.64
  6. Step 6: Final answer
    x = 179,337.42

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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.