Home / 271,427.20-407,140.80-121,508.35

Finding the Fourth Proportional to 271,427.20, 407,140.80 and 121,508.35

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Solution

The fourth proportional to 271,427.20, 407,140.80 and 121,508.35 is: 182,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,427.20 : 407,140.80 = 121,508.35 : x
  2. Step 2: Convert to fraction form
    271,427.20/407,140.80 = 121,508.35/x
  3. Step 3: Cross multiply
    271,427.20x = 407,140.80 × 121,508.35
  4. Step 4: Simplify right side
    271,427.20x = 49,471,006,825.68
  5. Step 5: Solve for x
    x = 49,471,006,825.68/271,427.20
  6. Step 6: Final answer
    x = 182,262.53

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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.