Home / 279,971.15-419,690.66-178,484.31

Finding the Fourth Proportional to 279,971.15, 419,690.66 and 178,484.31

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Solution

The fourth proportional to 279,971.15, 419,690.66 and 178,484.31 is: 267,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,971.15 : 419,690.66 = 178,484.31 : x
  2. Step 2: Convert to fraction form
    279,971.15/419,690.66 = 178,484.31/x
  3. Step 3: Cross multiply
    279,971.15x = 419,690.66 × 178,484.31
  4. Step 4: Simplify right side
    279,971.15x = 74,908,196,971.12
  5. Step 5: Solve for x
    x = 74,908,196,971.12/279,971.15
  6. Step 6: Final answer
    x = 267,556.85

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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.