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Finding the Fourth Proportional to 159,288.76, 238,767.88 and 79,273.72

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Solution

The fourth proportional to 159,288.76, 238,767.88 and 79,273.72 is: 118,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,288.76 : 238,767.88 = 79,273.72 : x
  2. Step 2: Convert to fraction form
    159,288.76/238,767.88 = 79,273.72/x
  3. Step 3: Cross multiply
    159,288.76x = 238,767.88 × 79,273.72
  4. Step 4: Simplify right side
    159,288.76x = 18,928,018,064.11
  5. Step 5: Solve for x
    x = 18,928,018,064.11/159,288.76
  6. Step 6: Final answer
    x = 118,828.33

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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.