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Finding the Fourth Proportional to 281,637.54, 388,676.34 and 160,816.73

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Solution

The fourth proportional to 281,637.54, 388,676.34 and 160,816.73 is: 221,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,637.54 : 388,676.34 = 160,816.73 : x
  2. Step 2: Convert to fraction form
    281,637.54/388,676.34 = 160,816.73/x
  3. Step 3: Cross multiply
    281,637.54x = 388,676.34 × 160,816.73
  4. Step 4: Simplify right side
    281,637.54x = 62,505,656,083.79
  5. Step 5: Solve for x
    x = 62,505,656,083.79/281,637.54
  6. Step 6: Final answer
    x = 221,936.52

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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.