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Finding the Fourth Proportional to 352,661.96, 486,672 and 191,515.88

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Solution

The fourth proportional to 352,661.96, 486,672 and 191,515.88 is: 264,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,661.96 : 486,672 = 191,515.88 : x
  2. Step 2: Convert to fraction form
    352,661.96/486,672 = 191,515.88/x
  3. Step 3: Cross multiply
    352,661.96x = 486,672 × 191,515.88
  4. Step 4: Simplify right side
    352,661.96x = 93,205,416,351.36
  5. Step 5: Solve for x
    x = 93,205,416,351.36/352,661.96
  6. Step 6: Final answer
    x = 264,291.10

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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.