Home / 219,590.16-303,018.49-121,469.25

Finding the Fourth Proportional to 219,590.16, 303,018.49 and 121,469.25

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Solution

The fourth proportional to 219,590.16, 303,018.49 and 121,469.25 is: 167,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,590.16 : 303,018.49 = 121,469.25 : x
  2. Step 2: Convert to fraction form
    219,590.16/303,018.49 = 121,469.25/x
  3. Step 3: Cross multiply
    219,590.16x = 303,018.49 × 121,469.25
  4. Step 4: Simplify right side
    219,590.16x = 36,807,428,716.43
  5. Step 5: Solve for x
    x = 36,807,428,716.43/219,590.16
  6. Step 6: Final answer
    x = 167,618.75

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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.