Home / 397,284.75-548,253.05-218,436.75

Finding the Fourth Proportional to 397,284.75, 548,253.05 and 218,436.75

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Solution

The fourth proportional to 397,284.75, 548,253.05 and 218,436.75 is: 301,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,284.75 : 548,253.05 = 218,436.75 : x
  2. Step 2: Convert to fraction form
    397,284.75/548,253.05 = 218,436.75/x
  3. Step 3: Cross multiply
    397,284.75x = 548,253.05 × 218,436.75
  4. Step 4: Simplify right side
    397,284.75x = 119,758,613,327.40
  5. Step 5: Solve for x
    x = 119,758,613,327.40/397,284.75
  6. Step 6: Final answer
    x = 301,442.76

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Double scale
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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.