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Finding the Fourth Proportional to 360,989.12, 498,217.12 and 207,998.01

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Solution

The fourth proportional to 360,989.12, 498,217.12 and 207,998.01 is: 287,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,989.12 : 498,217.12 = 207,998.01 : x
  2. Step 2: Convert to fraction form
    360,989.12/498,217.12 = 207,998.01/x
  3. Step 3: Cross multiply
    360,989.12x = 498,217.12 × 207,998.01
  4. Step 4: Simplify right side
    360,989.12x = 103,628,168,987.94
  5. Step 5: Solve for x
    x = 103,628,168,987.94/360,989.12
  6. Step 6: Final answer
    x = 287,067.29

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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.