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Finding the Fourth Proportional to 271,840.10, 407,760.15 and 215,852.90

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Solution

The fourth proportional to 271,840.10, 407,760.15 and 215,852.90 is: 323,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,840.10 : 407,760.15 = 215,852.90 : x
  2. Step 2: Convert to fraction form
    271,840.10/407,760.15 = 215,852.90/x
  3. Step 3: Cross multiply
    271,840.10x = 407,760.15 × 215,852.90
  4. Step 4: Simplify right side
    271,840.10x = 88,016,210,881.94
  5. Step 5: Solve for x
    x = 88,016,210,881.94/271,840.10
  6. Step 6: Final answer
    x = 323,779.35

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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.