Home / 225,929.12-311,790.48-136,487.84

Finding the Fourth Proportional to 225,929.12, 311,790.48 and 136,487.84

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Solution

The fourth proportional to 225,929.12, 311,790.48 and 136,487.84 is: 188,358.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,929.12 : 311,790.48 = 136,487.84 : x
  2. Step 2: Convert to fraction form
    225,929.12/311,790.48 = 136,487.84/x
  3. Step 3: Cross multiply
    225,929.12x = 311,790.48 × 136,487.84
  4. Step 4: Simplify right side
    225,929.12x = 42,555,609,147.76
  5. Step 5: Solve for x
    x = 42,555,609,147.76/225,929.12
  6. Step 6: Final answer
    x = 188,358.23

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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.