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Finding the Fourth Proportional to 197,555.76, 272,416.37 and 159,274.76

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Solution

The fourth proportional to 197,555.76, 272,416.37 and 159,274.76 is: 219,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,555.76 : 272,416.37 = 159,274.76 : x
  2. Step 2: Convert to fraction form
    197,555.76/272,416.37 = 159,274.76/x
  3. Step 3: Cross multiply
    197,555.76x = 272,416.37 × 159,274.76
  4. Step 4: Simplify right side
    197,555.76x = 43,389,049,793.37
  5. Step 5: Solve for x
    x = 43,389,049,793.37/197,555.76
  6. Step 6: Final answer
    x = 219,629.38

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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.