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Finding the Fourth Proportional to 381,171.66, 525,928.67 and 228,151.71

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Solution

The fourth proportional to 381,171.66, 525,928.67 and 228,151.71 is: 314,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,171.66 : 525,928.67 = 228,151.71 : x
  2. Step 2: Convert to fraction form
    381,171.66/525,928.67 = 228,151.71/x
  3. Step 3: Cross multiply
    381,171.66x = 525,928.67 × 228,151.71
  4. Step 4: Simplify right side
    381,171.66x = 119,991,525,398.53
  5. Step 5: Solve for x
    x = 119,991,525,398.53/381,171.66
  6. Step 6: Final answer
    x = 314,796.55

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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.