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Finding the Fourth Proportional to 360,405.20, 497,334.78 and 199,238.49

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Solution

The fourth proportional to 360,405.20, 497,334.78 and 199,238.49 is: 274,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,405.20 : 497,334.78 = 199,238.49 : x
  2. Step 2: Convert to fraction form
    360,405.20/497,334.78 = 199,238.49/x
  3. Step 3: Cross multiply
    360,405.20x = 497,334.78 × 199,238.49
  4. Step 4: Simplify right side
    360,405.20x = 99,088,230,591.68
  5. Step 5: Solve for x
    x = 99,088,230,591.68/360,405.20
  6. Step 6: Final answer
    x = 274,935.63

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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.