Home / 279,271.08-418,971.42-92,271.24

Finding the Fourth Proportional to 279,271.08, 418,971.42 and 92,271.24

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Solution

The fourth proportional to 279,271.08, 418,971.42 and 92,271.24 is: 138,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,271.08 : 418,971.42 = 92,271.24 : x
  2. Step 2: Convert to fraction form
    279,271.08/418,971.42 = 92,271.24/x
  3. Step 3: Cross multiply
    279,271.08x = 418,971.42 × 92,271.24
  4. Step 4: Simplify right side
    279,271.08x = 38,659,012,447.96
  5. Step 5: Solve for x
    x = 38,659,012,447.96/279,271.08
  6. Step 6: Final answer
    x = 138,428.27

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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.