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Finding the Fourth Proportional to 347,650.80, 521,375.76 and 158,005.50

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Solution

The fourth proportional to 347,650.80, 521,375.76 and 158,005.50 is: 236,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,650.80 : 521,375.76 = 158,005.50 : x
  2. Step 2: Convert to fraction form
    347,650.80/521,375.76 = 158,005.50/x
  3. Step 3: Cross multiply
    347,650.80x = 521,375.76 × 158,005.50
  4. Step 4: Simplify right side
    347,650.80x = 82,380,237,646.68
  5. Step 5: Solve for x
    x = 82,380,237,646.68/347,650.80
  6. Step 6: Final answer
    x = 236,962.60

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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.