Home / 397,122.35-548,032.43-215,834.71

Finding the Fourth Proportional to 397,122.35, 548,032.43 and 215,834.71

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Solution

The fourth proportional to 397,122.35, 548,032.43 and 215,834.71 is: 297,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,122.35 : 548,032.43 = 215,834.71 : x
  2. Step 2: Convert to fraction form
    397,122.35/548,032.43 = 215,834.71/x
  3. Step 3: Cross multiply
    397,122.35x = 548,032.43 × 215,834.71
  4. Step 4: Simplify right side
    397,122.35x = 118,284,418,150.39
  5. Step 5: Solve for x
    x = 118,284,418,150.39/397,122.35
  6. Step 6: Final answer
    x = 297,853.85

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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.