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Finding the Fourth Proportional to 227,421.36, 313,840.80 and 126,819.36

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Solution

The fourth proportional to 227,421.36, 313,840.80 and 126,819.36 is: 175,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,421.36 : 313,840.80 = 126,819.36 : x
  2. Step 2: Convert to fraction form
    227,421.36/313,840.80 = 126,819.36/x
  3. Step 3: Cross multiply
    227,421.36x = 313,840.80 × 126,819.36
  4. Step 4: Simplify right side
    227,421.36x = 39,801,089,397.89
  5. Step 5: Solve for x
    x = 39,801,089,397.89/227,421.36
  6. Step 6: Final answer
    x = 175,010.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.