Home / 268,840.50-403,285.86-79,301.04

Finding the Fourth Proportional to 268,840.50, 403,285.86 and 79,301.04

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Solution

The fourth proportional to 268,840.50, 403,285.86 and 79,301.04 is: 118,958.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,840.50 : 403,285.86 = 79,301.04 : x
  2. Step 2: Convert to fraction form
    268,840.50/403,285.86 = 79,301.04/x
  3. Step 3: Cross multiply
    268,840.50x = 403,285.86 × 79,301.04
  4. Step 4: Simplify right side
    268,840.50x = 31,980,988,115.29
  5. Step 5: Solve for x
    x = 31,980,988,115.29/268,840.50
  6. Step 6: Final answer
    x = 118,958.97

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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.