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Finding the Fourth Proportional to 215,008.81, 322,602.06 and 108,335.75

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Solution

The fourth proportional to 215,008.81, 322,602.06 and 108,335.75 is: 162,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,008.81 : 322,602.06 = 108,335.75 : x
  2. Step 2: Convert to fraction form
    215,008.81/322,602.06 = 108,335.75/x
  3. Step 3: Cross multiply
    215,008.81x = 322,602.06 × 108,335.75
  4. Step 4: Simplify right side
    215,008.81x = 34,949,336,121.65
  5. Step 5: Solve for x
    x = 34,949,336,121.65/215,008.81
  6. Step 6: Final answer
    x = 162,548.39

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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.