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Finding the Fourth Proportional to 315,242.05, 435,098.78 and 192,755.37

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Solution

The fourth proportional to 315,242.05, 435,098.78 and 192,755.37 is: 266,042.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,242.05 : 435,098.78 = 192,755.37 : x
  2. Step 2: Convert to fraction form
    315,242.05/435,098.78 = 192,755.37/x
  3. Step 3: Cross multiply
    315,242.05x = 435,098.78 × 192,755.37
  4. Step 4: Simplify right side
    315,242.05x = 83,867,626,325.45
  5. Step 5: Solve for x
    x = 83,867,626,325.45/315,242.05
  6. Step 6: Final answer
    x = 266,042.00

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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.