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Finding the Fourth Proportional to 381,104.00, 525,933.18 and 215,518.71

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Solution

The fourth proportional to 381,104.00, 525,933.18 and 215,518.71 is: 297,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,104.00 : 525,933.18 = 215,518.71 : x
  2. Step 2: Convert to fraction form
    381,104.00/525,933.18 = 215,518.71/x
  3. Step 3: Cross multiply
    381,104.00x = 525,933.18 × 215,518.71
  4. Step 4: Simplify right side
    381,104.00x = 113,348,441,126.31
  5. Step 5: Solve for x
    x = 113,348,441,126.31/381,104.00
  6. Step 6: Final answer
    x = 297,421.28

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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.