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Finding the Fourth Proportional to 360,908.48, 498,058.13 and 199,778.56

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Solution

The fourth proportional to 360,908.48, 498,058.13 and 199,778.56 is: 275,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,908.48 : 498,058.13 = 199,778.56 : x
  2. Step 2: Convert to fraction form
    360,908.48/498,058.13 = 199,778.56/x
  3. Step 3: Cross multiply
    360,908.48x = 498,058.13 × 199,778.56
  4. Step 4: Simplify right side
    360,908.48x = 99,501,335,261.99
  5. Step 5: Solve for x
    x = 99,501,335,261.99/360,908.48
  6. Step 6: Final answer
    x = 275,696.86

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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.