Home / 304,910.68-457,283.40-127,380.55

Finding the Fourth Proportional to 304,910.68, 457,283.40 and 127,380.55

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Solution

The fourth proportional to 304,910.68, 457,283.40 and 127,380.55 is: 191,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,910.68 : 457,283.40 = 127,380.55 : x
  2. Step 2: Convert to fraction form
    304,910.68/457,283.40 = 127,380.55/x
  3. Step 3: Cross multiply
    304,910.68x = 457,283.40 × 127,380.55
  4. Step 4: Simplify right side
    304,910.68x = 58,249,010,997.87
  5. Step 5: Solve for x
    x = 58,249,010,997.87/304,910.68
  6. Step 6: Final answer
    x = 191,036.31

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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.