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Finding the Fourth Proportional to 381,010.68, 525,824.46 and 211,277.88

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Solution

The fourth proportional to 381,010.68, 525,824.46 and 211,277.88 is: 291,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,010.68 : 525,824.46 = 211,277.88 : x
  2. Step 2: Convert to fraction form
    381,010.68/525,824.46 = 211,277.88/x
  3. Step 3: Cross multiply
    381,010.68x = 525,824.46 × 211,277.88
  4. Step 4: Simplify right side
    381,010.68x = 111,095,077,160.95
  5. Step 5: Solve for x
    x = 111,095,077,160.95/381,010.68
  6. Step 6: Final answer
    x = 291,579.96

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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.