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Finding the Fourth Proportional to 167,216.40, 250,906.59 and 78,477.12

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Solution

The fourth proportional to 167,216.40, 250,906.59 and 78,477.12 is: 117,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,216.40 : 250,906.59 = 78,477.12 : x
  2. Step 2: Convert to fraction form
    167,216.40/250,906.59 = 78,477.12/x
  3. Step 3: Cross multiply
    167,216.40x = 250,906.59 × 78,477.12
  4. Step 4: Simplify right side
    167,216.40x = 19,690,426,572.22
  5. Step 5: Solve for x
    x = 19,690,426,572.22/167,216.40
  6. Step 6: Final answer
    x = 117,754.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.