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Finding the Fourth Proportional to 304,841.16, 420,676.36 and 168,874.88

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Solution

The fourth proportional to 304,841.16, 420,676.36 and 168,874.88 is: 233,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,841.16 : 420,676.36 = 168,874.88 : x
  2. Step 2: Convert to fraction form
    304,841.16/420,676.36 = 168,874.88/x
  3. Step 3: Cross multiply
    304,841.16x = 420,676.36 × 168,874.88
  4. Step 4: Simplify right side
    304,841.16x = 71,041,669,813.84
  5. Step 5: Solve for x
    x = 71,041,669,813.84/304,841.16
  6. Step 6: Final answer
    x = 233,044.87

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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.