Home / 217,918.56-326,440.44-158,879.28

Finding the Fourth Proportional to 217,918.56, 326,440.44 and 158,879.28

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Solution

The fourth proportional to 217,918.56, 326,440.44 and 158,879.28 is: 238,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,918.56 : 326,440.44 = 158,879.28 : x
  2. Step 2: Convert to fraction form
    217,918.56/326,440.44 = 158,879.28/x
  3. Step 3: Cross multiply
    217,918.56x = 326,440.44 × 158,879.28
  4. Step 4: Simplify right side
    217,918.56x = 51,864,622,070.08
  5. Step 5: Solve for x
    x = 51,864,622,070.08/217,918.56
  6. Step 6: Final answer
    x = 238,000.02

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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.