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Finding the Fourth Proportional to 271,863.60, 407,795.40 and 215,876.40

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Solution

The fourth proportional to 271,863.60, 407,795.40 and 215,876.40 is: 323,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,863.60 : 407,795.40 = 215,876.40 : x
  2. Step 2: Convert to fraction form
    271,863.60/407,795.40 = 215,876.40/x
  3. Step 3: Cross multiply
    271,863.60x = 407,795.40 × 215,876.40
  4. Step 4: Simplify right side
    271,863.60x = 88,033,402,888.56
  5. Step 5: Solve for x
    x = 88,033,402,888.56/271,863.60
  6. Step 6: Final answer
    x = 323,814.60

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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.