Home / 217,928.56-326,455.40-158,889.28

Finding the Fourth Proportional to 217,928.56, 326,455.40 and 158,889.28

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Solution

The fourth proportional to 217,928.56, 326,455.40 and 158,889.28 is: 238,014.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,928.56 : 326,455.40 = 158,889.28 : x
  2. Step 2: Convert to fraction form
    217,928.56/326,455.40 = 158,889.28/x
  3. Step 3: Cross multiply
    217,928.56x = 326,455.40 × 158,889.28
  4. Step 4: Simplify right side
    217,928.56x = 51,870,263,458.11
  5. Step 5: Solve for x
    x = 51,870,263,458.11/217,928.56
  6. Step 6: Final answer
    x = 238,014.99

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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.