Home / 336,648.48-504,824.88-126,138.78

Finding the Fourth Proportional to 336,648.48, 504,824.88 and 126,138.78

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Solution

The fourth proportional to 336,648.48, 504,824.88 and 126,138.78 is: 189,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,648.48 : 504,824.88 = 126,138.78 : x
  2. Step 2: Convert to fraction form
    336,648.48/504,824.88 = 126,138.78/x
  3. Step 3: Cross multiply
    336,648.48x = 504,824.88 × 126,138.78
  4. Step 4: Simplify right side
    336,648.48x = 63,677,994,476.85
  5. Step 5: Solve for x
    x = 63,677,994,476.85/336,648.48
  6. Step 6: Final answer
    x = 189,152.78

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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.