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Finding the Fourth Proportional to 352,440.45, 486,368.42 and 191,295.54

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Solution

The fourth proportional to 352,440.45, 486,368.42 and 191,295.54 is: 263,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,440.45 : 486,368.42 = 191,295.54 : x
  2. Step 2: Convert to fraction form
    352,440.45/486,368.42 = 191,295.54/x
  3. Step 3: Cross multiply
    352,440.45x = 486,368.42 × 191,295.54
  4. Step 4: Simplify right side
    352,440.45x = 93,040,108,586.37
  5. Step 5: Solve for x
    x = 93,040,108,586.37/352,440.45
  6. Step 6: Final answer
    x = 263,988.17

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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.