Home / 258,860.28-388,219.17-163,948.11

Finding the Fourth Proportional to 258,860.28, 388,219.17 and 163,948.11

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Solution

The fourth proportional to 258,860.28, 388,219.17 and 163,948.11 is: 245,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,860.28 : 388,219.17 = 163,948.11 : x
  2. Step 2: Convert to fraction form
    258,860.28/388,219.17 = 163,948.11/x
  3. Step 3: Cross multiply
    258,860.28x = 388,219.17 × 163,948.11
  4. Step 4: Simplify right side
    258,860.28x = 63,647,799,187.27
  5. Step 5: Solve for x
    x = 63,647,799,187.27/258,860.28
  6. Step 6: Final answer
    x = 245,877.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.