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Finding the Fourth Proportional to 236,384.92, 354,635.70 and 78,614.74

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Solution

The fourth proportional to 236,384.92, 354,635.70 and 78,614.74 is: 117,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,384.92 : 354,635.70 = 78,614.74 : x
  2. Step 2: Convert to fraction form
    236,384.92/354,635.70 = 78,614.74/x
  3. Step 3: Cross multiply
    236,384.92x = 354,635.70 × 78,614.74
  4. Step 4: Simplify right side
    236,384.92x = 27,879,593,350.22
  5. Step 5: Solve for x
    x = 27,879,593,350.22/236,384.92
  6. Step 6: Final answer
    x = 117,941.51

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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.