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Finding the Fourth Proportional to 347,654.70, 521,676.45 and 147,941.10

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Solution

The fourth proportional to 347,654.70, 521,676.45 and 147,941.10 is: 221,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,654.70 : 521,676.45 = 147,941.10 : x
  2. Step 2: Convert to fraction form
    347,654.70/521,676.45 = 147,941.10/x
  3. Step 3: Cross multiply
    347,654.70x = 521,676.45 × 147,941.10
  4. Step 4: Simplify right side
    347,654.70x = 77,177,387,857.10
  5. Step 5: Solve for x
    x = 77,177,387,857.10/347,654.70
  6. Step 6: Final answer
    x = 221,994.38

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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.