Home / 281,954.34-389,061.02-161,103.45

Finding the Fourth Proportional to 281,954.34, 389,061.02 and 161,103.45

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Solution

The fourth proportional to 281,954.34, 389,061.02 and 161,103.45 is: 222,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,954.34 : 389,061.02 = 161,103.45 : x
  2. Step 2: Convert to fraction form
    281,954.34/389,061.02 = 161,103.45/x
  3. Step 3: Cross multiply
    281,954.34x = 389,061.02 × 161,103.45
  4. Step 4: Simplify right side
    281,954.34x = 62,679,071,777.00
  5. Step 5: Solve for x
    x = 62,679,071,777.00/281,954.34
  6. Step 6: Final answer
    x = 222,302.21

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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.