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Finding the Fourth Proportional to 360,739.36, 497,820.90 and 199,601.20

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Solution

The fourth proportional to 360,739.36, 497,820.90 and 199,601.20 is: 275,449.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,739.36 : 497,820.90 = 199,601.20 : x
  2. Step 2: Convert to fraction form
    360,739.36/497,820.90 = 199,601.20/x
  3. Step 3: Cross multiply
    360,739.36x = 497,820.90 × 199,601.20
  4. Step 4: Simplify right side
    360,739.36x = 99,365,649,025.08
  5. Step 5: Solve for x
    x = 99,365,649,025.08/360,739.36
  6. Step 6: Final answer
    x = 275,449.98

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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.