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Finding the Fourth Proportional to 239,444.82, 330,491.43 and 143,933.06

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Solution

The fourth proportional to 239,444.82, 330,491.43 and 143,933.06 is: 198,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,444.82 : 330,491.43 = 143,933.06 : x
  2. Step 2: Convert to fraction form
    239,444.82/330,491.43 = 143,933.06/x
  3. Step 3: Cross multiply
    239,444.82x = 330,491.43 × 143,933.06
  4. Step 4: Simplify right side
    239,444.82x = 47,568,643,649.90
  5. Step 5: Solve for x
    x = 47,568,643,649.90/239,444.82
  6. Step 6: Final answer
    x = 198,662.24

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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.