Home / 268,320.58-402,590.82-141,927.78

Finding the Fourth Proportional to 268,320.58, 402,590.82 and 141,927.78

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Solution

The fourth proportional to 268,320.58, 402,590.82 and 141,927.78 is: 212,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,320.58 : 402,590.82 = 141,927.78 : x
  2. Step 2: Convert to fraction form
    268,320.58/402,590.82 = 141,927.78/x
  3. Step 3: Cross multiply
    268,320.58x = 402,590.82 × 141,927.78
  4. Step 4: Simplify right side
    268,320.58x = 57,138,821,330.98
  5. Step 5: Solve for x
    x = 57,138,821,330.98/268,320.58
  6. Step 6: Final answer
    x = 212,949.83

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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.