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Finding the Fourth Proportional to 315,171.45, 470,299.02 and 281,203.97

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Solution

The fourth proportional to 315,171.45, 470,299.02 and 281,203.97 is: 419,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,171.45 : 470,299.02 = 281,203.97 : x
  2. Step 2: Convert to fraction form
    315,171.45/470,299.02 = 281,203.97/x
  3. Step 3: Cross multiply
    315,171.45x = 470,299.02 × 281,203.97
  4. Step 4: Simplify right side
    315,171.45x = 132,249,954,329.25
  5. Step 5: Solve for x
    x = 132,249,954,329.25/315,171.45
  6. Step 6: Final answer
    x = 419,612.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.