Home / 281,113.20-421,669.80-268,671.60

Finding the Fourth Proportional to 281,113.20, 421,669.80 and 268,671.60

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Solution

The fourth proportional to 281,113.20, 421,669.80 and 268,671.60 is: 403,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,113.20 : 421,669.80 = 268,671.60 : x
  2. Step 2: Convert to fraction form
    281,113.20/421,669.80 = 268,671.60/x
  3. Step 3: Cross multiply
    281,113.20x = 421,669.80 × 268,671.60
  4. Step 4: Simplify right side
    281,113.20x = 113,290,699,837.68
  5. Step 5: Solve for x
    x = 113,290,699,837.68/281,113.20
  6. Step 6: Final answer
    x = 403,007.40

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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.