Home / 225,530.02-311,240.78-123,564.34

Finding the Fourth Proportional to 225,530.02, 311,240.78 and 123,564.34

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Solution

The fourth proportional to 225,530.02, 311,240.78 and 123,564.34 is: 170,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,530.02 : 311,240.78 = 123,564.34 : x
  2. Step 2: Convert to fraction form
    225,530.02/311,240.78 = 123,564.34/x
  3. Step 3: Cross multiply
    225,530.02x = 311,240.78 × 123,564.34
  4. Step 4: Simplify right side
    225,530.02x = 38,458,260,045.65
  5. Step 5: Solve for x
    x = 38,458,260,045.65/225,530.02
  6. Step 6: Final answer
    x = 170,523.91

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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.