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Finding the Fourth Proportional to 351,480.30, 484,923.78 and 230,610.30

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Solution

The fourth proportional to 351,480.30, 484,923.78 and 230,610.30 is: 318,164.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,480.30 : 484,923.78 = 230,610.30 : x
  2. Step 2: Convert to fraction form
    351,480.30/484,923.78 = 230,610.30/x
  3. Step 3: Cross multiply
    351,480.30x = 484,923.78 × 230,610.30
  4. Step 4: Simplify right side
    351,480.30x = 111,828,418,382.93
  5. Step 5: Solve for x
    x = 111,828,418,382.93/351,480.30
  6. Step 6: Final answer
    x = 318,164.11

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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.