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Finding the Fourth Proportional to 338,756.92, 508,228.32 and 275,419.58

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Solution

The fourth proportional to 338,756.92, 508,228.32 and 275,419.58 is: 413,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,756.92 : 508,228.32 = 275,419.58 : x
  2. Step 2: Convert to fraction form
    338,756.92/508,228.32 = 275,419.58/x
  3. Step 3: Cross multiply
    338,756.92x = 508,228.32 × 275,419.58
  4. Step 4: Simplify right side
    338,756.92x = 139,976,028,930.19
  5. Step 5: Solve for x
    x = 139,976,028,930.19/338,756.92
  6. Step 6: Final answer
    x = 413,204.93

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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.