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Finding the Fourth Proportional to 347,897.80, 521,846.70 and 269,068.60

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Solution

The fourth proportional to 347,897.80, 521,846.70 and 269,068.60 is: 403,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,897.80 : 521,846.70 = 269,068.60 : x
  2. Step 2: Convert to fraction form
    347,897.80/521,846.70 = 269,068.60/x
  3. Step 3: Cross multiply
    347,897.80x = 521,846.70 × 269,068.60
  4. Step 4: Simplify right side
    347,897.80x = 140,412,560,983.62
  5. Step 5: Solve for x
    x = 140,412,560,983.62/347,897.80
  6. Step 6: Final answer
    x = 403,602.90

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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.