Home / 271,929.63-407,852.33-138,908.19

Finding the Fourth Proportional to 271,929.63, 407,852.33 and 138,908.19

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Solution

The fourth proportional to 271,929.63, 407,852.33 and 138,908.19 is: 208,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,929.63 : 407,852.33 = 138,908.19 : x
  2. Step 2: Convert to fraction form
    271,929.63/407,852.33 = 138,908.19/x
  3. Step 3: Cross multiply
    271,929.63x = 407,852.33 × 138,908.19
  4. Step 4: Simplify right side
    271,929.63x = 56,654,028,947.58
  5. Step 5: Solve for x
    x = 56,654,028,947.58/271,929.63
  6. Step 6: Final answer
    x = 208,340.77

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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.