Home / 279,271.12-418,843.59-79,587.22

Finding the Fourth Proportional to 279,271.12, 418,843.59 and 79,587.22

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Solution

The fourth proportional to 279,271.12, 418,843.59 and 79,587.22 is: 119,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,271.12 : 418,843.59 = 79,587.22 : x
  2. Step 2: Convert to fraction form
    279,271.12/418,843.59 = 79,587.22/x
  3. Step 3: Cross multiply
    279,271.12x = 418,843.59 × 79,587.22
  4. Step 4: Simplify right side
    279,271.12x = 33,334,596,942.92
  5. Step 5: Solve for x
    x = 33,334,596,942.92/279,271.12
  6. Step 6: Final answer
    x = 119,362.85

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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.