Home / 271,828.10-407,742.15-215,840.90

Finding the Fourth Proportional to 271,828.10, 407,742.15 and 215,840.90

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Solution

The fourth proportional to 271,828.10, 407,742.15 and 215,840.90 is: 323,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,828.10 : 407,742.15 = 215,840.90 : x
  2. Step 2: Convert to fraction form
    271,828.10/407,742.15 = 215,840.90/x
  3. Step 3: Cross multiply
    271,828.10x = 407,742.15 × 215,840.90
  4. Step 4: Simplify right side
    271,828.10x = 88,007,432,623.94
  5. Step 5: Solve for x
    x = 88,007,432,623.94/271,828.10
  6. Step 6: Final answer
    x = 323,761.35

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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.