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Finding the Fourth Proportional to 279,226.04, 418,833.62 and 79,547.72

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Solution

The fourth proportional to 279,226.04, 418,833.62 and 79,547.72 is: 119,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,226.04 : 418,833.62 = 79,547.72 : x
  2. Step 2: Convert to fraction form
    279,226.04/418,833.62 = 79,547.72/x
  3. Step 3: Cross multiply
    279,226.04x = 418,833.62 × 79,547.72
  4. Step 4: Simplify right side
    279,226.04x = 33,317,259,530.35
  5. Step 5: Solve for x
    x = 33,317,259,530.35/279,226.04
  6. Step 6: Final answer
    x = 119,320.03

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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.