Home / 225,100.41-310,604.09-129,588.65

Finding the Fourth Proportional to 225,100.41, 310,604.09 and 129,588.65

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Solution

The fourth proportional to 225,100.41, 310,604.09 and 129,588.65 is: 178,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,100.41 : 310,604.09 = 129,588.65 : x
  2. Step 2: Convert to fraction form
    225,100.41/310,604.09 = 129,588.65/x
  3. Step 3: Cross multiply
    225,100.41x = 310,604.09 × 129,588.65
  4. Step 4: Simplify right side
    225,100.41x = 40,250,764,059.64
  5. Step 5: Solve for x
    x = 40,250,764,059.64/225,100.41
  6. Step 6: Final answer
    x = 178,812.49

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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.