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Finding the Fourth Proportional to 248,654.30, 373,306.68 and 147,636.78

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Solution

The fourth proportional to 248,654.30, 373,306.68 and 147,636.78 is: 221,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,654.30 : 373,306.68 = 147,636.78 : x
  2. Step 2: Convert to fraction form
    248,654.30/373,306.68 = 147,636.78/x
  3. Step 3: Cross multiply
    248,654.30x = 373,306.68 × 147,636.78
  4. Step 4: Simplify right side
    248,654.30x = 55,113,796,187.69
  5. Step 5: Solve for x
    x = 55,113,796,187.69/248,654.30
  6. Step 6: Final answer
    x = 221,648.27

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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.