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Finding the Fourth Proportional to 271,888.60, 407,832.90 and 215,901.40

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Solution

The fourth proportional to 271,888.60, 407,832.90 and 215,901.40 is: 323,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,888.60 : 407,832.90 = 215,901.40 : x
  2. Step 2: Convert to fraction form
    271,888.60/407,832.90 = 215,901.40/x
  3. Step 3: Cross multiply
    271,888.60x = 407,832.90 × 215,901.40
  4. Step 4: Simplify right side
    271,888.60x = 88,051,694,076.06
  5. Step 5: Solve for x
    x = 88,051,694,076.06/271,888.60
  6. Step 6: Final answer
    x = 323,852.10

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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.