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Finding the Fourth Proportional to 365,650.56, 547,698.24 and 215,729.28

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Solution

The fourth proportional to 365,650.56, 547,698.24 and 215,729.28 is: 323,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,650.56 : 547,698.24 = 215,729.28 : x
  2. Step 2: Convert to fraction form
    365,650.56/547,698.24 = 215,729.28/x
  3. Step 3: Cross multiply
    365,650.56x = 547,698.24 × 215,729.28
  4. Step 4: Simplify right side
    365,650.56x = 118,154,546,972.47
  5. Step 5: Solve for x
    x = 118,154,546,972.47/365,650.56
  6. Step 6: Final answer
    x = 323,135.15

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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.