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Finding the Fourth Proportional to 271,295.17, 407,027.45 and 163,342.87

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Solution

The fourth proportional to 271,295.17, 407,027.45 and 163,342.87 is: 245,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,295.17 : 407,027.45 = 163,342.87 : x
  2. Step 2: Convert to fraction form
    271,295.17/407,027.45 = 163,342.87/x
  3. Step 3: Cross multiply
    271,295.17x = 407,027.45 × 163,342.87
  4. Step 4: Simplify right side
    271,295.17x = 66,485,031,851.78
  5. Step 5: Solve for x
    x = 66,485,031,851.78/271,295.17
  6. Step 6: Final answer
    x = 245,065.30

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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.