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Finding the Fourth Proportional to 360,894.11, 498,018.21 and 199,739.55

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Solution

The fourth proportional to 360,894.11, 498,018.21 and 199,739.55 is: 275,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,894.11 : 498,018.21 = 199,739.55 : x
  2. Step 2: Convert to fraction form
    360,894.11/498,018.21 = 199,739.55/x
  3. Step 3: Cross multiply
    360,894.11x = 498,018.21 × 199,739.55
  4. Step 4: Simplify right side
    360,894.11x = 99,473,933,157.21
  5. Step 5: Solve for x
    x = 99,473,933,157.21/360,894.11
  6. Step 6: Final answer
    x = 275,631.91

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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.