Home / 225,483.03-311,162.85-123,507.54

Finding the Fourth Proportional to 225,483.03, 311,162.85 and 123,507.54

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Solution

The fourth proportional to 225,483.03, 311,162.85 and 123,507.54 is: 170,438.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,483.03 : 311,162.85 = 123,507.54 : x
  2. Step 2: Convert to fraction form
    225,483.03/311,162.85 = 123,507.54/x
  3. Step 3: Cross multiply
    225,483.03x = 311,162.85 × 123,507.54
  4. Step 4: Simplify right side
    225,483.03x = 38,430,958,142.89
  5. Step 5: Solve for x
    x = 38,430,958,142.89/225,483.03
  6. Step 6: Final answer
    x = 170,438.36

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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.