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Finding the Fourth Proportional to 381,058.29, 525,842.64 and 219,965.24

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Solution

The fourth proportional to 381,058.29, 525,842.64 and 219,965.24 is: 303,541.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,058.29 : 525,842.64 = 219,965.24 : x
  2. Step 2: Convert to fraction form
    381,058.29/525,842.64 = 219,965.24/x
  3. Step 3: Cross multiply
    381,058.29x = 525,842.64 × 219,965.24
  4. Step 4: Simplify right side
    381,058.29x = 115,667,103,824.44
  5. Step 5: Solve for x
    x = 115,667,103,824.44/381,058.29
  6. Step 6: Final answer
    x = 303,541.76

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1.5x scale

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.