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Finding the Fourth Proportional to 352,680, 486,698.28 and 191,535.09

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Solution

The fourth proportional to 352,680, 486,698.28 and 191,535.09 is: 264,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,680 : 486,698.28 = 191,535.09 : x
  2. Step 2: Convert to fraction form
    352,680/486,698.28 = 191,535.09/x
  3. Step 3: Cross multiply
    352,680x = 486,698.28 × 191,535.09
  4. Step 4: Simplify right side
    352,680x = 93,219,798,862.65
  5. Step 5: Solve for x
    x = 93,219,798,862.65/352,680
  6. Step 6: Final answer
    x = 264,318.36

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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.