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Finding the Fourth Proportional to 271,811.10, 407,716.65 and 84,798.30

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Solution

The fourth proportional to 271,811.10, 407,716.65 and 84,798.30 is: 127,197.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,811.10 : 407,716.65 = 84,798.30 : x
  2. Step 2: Convert to fraction form
    271,811.10/407,716.65 = 84,798.30/x
  3. Step 3: Cross multiply
    271,811.10x = 407,716.65 × 84,798.30
  4. Step 4: Simplify right side
    271,811.10x = 34,573,678,801.70
  5. Step 5: Solve for x
    x = 34,573,678,801.70/271,811.10
  6. Step 6: Final answer
    x = 127,197.45

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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.