Home / 407,222.09-561,947.45-225,932.09

Finding the Fourth Proportional to 407,222.09, 561,947.45 and 225,932.09

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Solution

The fourth proportional to 407,222.09, 561,947.45 and 225,932.09 is: 311,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,222.09 : 561,947.45 = 225,932.09 : x
  2. Step 2: Convert to fraction form
    407,222.09/561,947.45 = 225,932.09/x
  3. Step 3: Cross multiply
    407,222.09x = 561,947.45 × 225,932.09
  4. Step 4: Simplify right side
    407,222.09x = 126,961,960,719.01
  5. Step 5: Solve for x
    x = 126,961,960,719.01/407,222.09
  6. Step 6: Final answer
    x = 311,775.72

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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.