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Finding the Fourth Proportional to 227,572.76, 313,904.22 and 138,148.76

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Solution

The fourth proportional to 227,572.76, 313,904.22 and 138,148.76 is: 190,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,572.76 : 313,904.22 = 138,148.76 : x
  2. Step 2: Convert to fraction form
    227,572.76/313,904.22 = 138,148.76/x
  3. Step 3: Cross multiply
    227,572.76x = 313,904.22 × 138,148.76
  4. Step 4: Simplify right side
    227,572.76x = 43,365,478,751.77
  5. Step 5: Solve for x
    x = 43,365,478,751.77/227,572.76
  6. Step 6: Final answer
    x = 190,556.54

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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.