Home / 287,247.78-430,944.57-109,736.28

Finding the Fourth Proportional to 287,247.78, 430,944.57 and 109,736.28

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Solution

The fourth proportional to 287,247.78, 430,944.57 and 109,736.28 is: 164,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,247.78 : 430,944.57 = 109,736.28 : x
  2. Step 2: Convert to fraction form
    287,247.78/430,944.57 = 109,736.28/x
  3. Step 3: Cross multiply
    287,247.78x = 430,944.57 × 109,736.28
  4. Step 4: Simplify right side
    287,247.78x = 47,290,253,998.00
  5. Step 5: Solve for x
    x = 47,290,253,998.00/287,247.78
  6. Step 6: Final answer
    x = 164,632.27

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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.