Home / 279,116.48-385,172.52-158,268.80

Finding the Fourth Proportional to 279,116.48, 385,172.52 and 158,268.80

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Solution

The fourth proportional to 279,116.48, 385,172.52 and 158,268.80 is: 218,406.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,116.48 : 385,172.52 = 158,268.80 : x
  2. Step 2: Convert to fraction form
    279,116.48/385,172.52 = 158,268.80/x
  3. Step 3: Cross multiply
    279,116.48x = 385,172.52 × 158,268.80
  4. Step 4: Simplify right side
    279,116.48x = 60,960,792,902.80
  5. Step 5: Solve for x
    x = 60,960,792,902.80/279,116.48
  6. Step 6: Final answer
    x = 218,406.28

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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.