Home / 210,731.92-290,812.34-115,236.56

Finding the Fourth Proportional to 210,731.92, 290,812.34 and 115,236.56

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Solution

The fourth proportional to 210,731.92, 290,812.34 and 115,236.56 is: 159,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,731.92 : 290,812.34 = 115,236.56 : x
  2. Step 2: Convert to fraction form
    210,731.92/290,812.34 = 115,236.56/x
  3. Step 3: Cross multiply
    210,731.92x = 290,812.34 × 115,236.56
  4. Step 4: Simplify right side
    210,731.92x = 33,512,214,682.27
  5. Step 5: Solve for x
    x = 33,512,214,682.27/210,731.92
  6. Step 6: Final answer
    x = 159,027.71

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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.