Home / 268,869.60-403,304.40-111,211.20

Finding the Fourth Proportional to 268,869.60, 403,304.40 and 111,211.20

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Solution

The fourth proportional to 268,869.60, 403,304.40 and 111,211.20 is: 166,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,869.60 : 403,304.40 = 111,211.20 : x
  2. Step 2: Convert to fraction form
    268,869.60/403,304.40 = 111,211.20/x
  3. Step 3: Cross multiply
    268,869.60x = 403,304.40 × 111,211.20
  4. Step 4: Simplify right side
    268,869.60x = 44,851,966,289.28
  5. Step 5: Solve for x
    x = 44,851,966,289.28/268,869.60
  6. Step 6: Final answer
    x = 166,816.80

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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.