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Finding the Fourth Proportional to 345,459.35, 476,690.91 and 200,264.42

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Solution

The fourth proportional to 345,459.35, 476,690.91 and 200,264.42 is: 276,339.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,459.35 : 476,690.91 = 200,264.42 : x
  2. Step 2: Convert to fraction form
    345,459.35/476,690.91 = 200,264.42/x
  3. Step 3: Cross multiply
    345,459.35x = 476,690.91 × 200,264.42
  4. Step 4: Simplify right side
    345,459.35x = 95,464,226,226.97
  5. Step 5: Solve for x
    x = 95,464,226,226.97/345,459.35
  6. Step 6: Final answer
    x = 276,339.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.