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Finding the Fourth Proportional to 239,638.87, 330,699.36 and 132,209.77

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Solution

The fourth proportional to 239,638.87, 330,699.36 and 132,209.77 is: 182,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,638.87 : 330,699.36 = 132,209.77 : x
  2. Step 2: Convert to fraction form
    239,638.87/330,699.36 = 132,209.77/x
  3. Step 3: Cross multiply
    239,638.87x = 330,699.36 × 132,209.77
  4. Step 4: Simplify right side
    239,638.87x = 43,721,686,324.75
  5. Step 5: Solve for x
    x = 43,721,686,324.75/239,638.87
  6. Step 6: Final answer
    x = 182,448.22

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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.