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Finding the Fourth Proportional to 271,858.80, 407,788.20 and 177,380.40

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Solution

The fourth proportional to 271,858.80, 407,788.20 and 177,380.40 is: 266,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,858.80 : 407,788.20 = 177,380.40 : x
  2. Step 2: Convert to fraction form
    271,858.80/407,788.20 = 177,380.40/x
  3. Step 3: Cross multiply
    271,858.80x = 407,788.20 × 177,380.40
  4. Step 4: Simplify right side
    271,858.80x = 72,333,634,031.28
  5. Step 5: Solve for x
    x = 72,333,634,031.28/271,858.80
  6. Step 6: Final answer
    x = 266,070.60

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1.5x scale

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.