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Finding the Fourth Proportional to 239,447.08, 330,472.74 and 143,996.68

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Solution

The fourth proportional to 239,447.08, 330,472.74 and 143,996.68 is: 198,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,447.08 : 330,472.74 = 143,996.68 : x
  2. Step 2: Convert to fraction form
    239,447.08/330,472.74 = 143,996.68/x
  3. Step 3: Cross multiply
    239,447.08x = 330,472.74 × 143,996.68
  4. Step 4: Simplify right side
    239,447.08x = 47,586,977,390.50
  5. Step 5: Solve for x
    x = 47,586,977,390.50/239,447.08
  6. Step 6: Final answer
    x = 198,736.93

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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.