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Finding the Fourth Proportional to 315,796.28, 472,845.56 and 240,558

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Solution

The fourth proportional to 315,796.28, 472,845.56 and 240,558 is: 360,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,796.28 : 472,845.56 = 240,558 : x
  2. Step 2: Convert to fraction form
    315,796.28/472,845.56 = 240,558/x
  3. Step 3: Cross multiply
    315,796.28x = 472,845.56 × 240,558
  4. Step 4: Simplify right side
    315,796.28x = 113,746,782,222.48
  5. Step 5: Solve for x
    x = 113,746,782,222.48/315,796.28
  6. Step 6: Final answer
    x = 360,190.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.