Home / 279,181.12-418,774.14-79,501.36

Finding the Fourth Proportional to 279,181.12, 418,774.14 and 79,501.36

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Solution

The fourth proportional to 279,181.12, 418,774.14 and 79,501.36 is: 119,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,181.12 : 418,774.14 = 79,501.36 : x
  2. Step 2: Convert to fraction form
    279,181.12/418,774.14 = 79,501.36/x
  3. Step 3: Cross multiply
    279,181.12x = 418,774.14 × 79,501.36
  4. Step 4: Simplify right side
    279,181.12x = 33,293,113,662.83
  5. Step 5: Solve for x
    x = 33,293,113,662.83/279,181.12
  6. Step 6: Final answer
    x = 119,252.74

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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.