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Finding the Fourth Proportional to 225,673.11, 311,417.33 and 130,174.11

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Solution

The fourth proportional to 225,673.11, 311,417.33 and 130,174.11 is: 179,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,673.11 : 311,417.33 = 130,174.11 : x
  2. Step 2: Convert to fraction form
    225,673.11/311,417.33 = 130,174.11/x
  3. Step 3: Cross multiply
    225,673.11x = 311,417.33 × 130,174.11
  4. Step 4: Simplify right side
    225,673.11x = 40,538,473,120.46
  5. Step 5: Solve for x
    x = 40,538,473,120.46/225,673.11
  6. Step 6: Final answer
    x = 179,633.60

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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.