Home / 397,963.38-549,161.75-225,884.87

Finding the Fourth Proportional to 397,963.38, 549,161.75 and 225,884.87

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Solution

The fourth proportional to 397,963.38, 549,161.75 and 225,884.87 is: 311,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,963.38 : 549,161.75 = 225,884.87 : x
  2. Step 2: Convert to fraction form
    397,963.38/549,161.75 = 225,884.87/x
  3. Step 3: Cross multiply
    397,963.38x = 549,161.75 × 225,884.87
  4. Step 4: Simplify right side
    397,963.38x = 124,047,326,632.49
  5. Step 5: Solve for x
    x = 124,047,326,632.49/397,963.38
  6. Step 6: Final answer
    x = 311,705.38

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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.