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Finding the Fourth Proportional to 236,737.82, 355,108.05 and 78,965.84

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Solution

The fourth proportional to 236,737.82, 355,108.05 and 78,965.84 is: 118,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,737.82 : 355,108.05 = 78,965.84 : x
  2. Step 2: Convert to fraction form
    236,737.82/355,108.05 = 78,965.84/x
  3. Step 3: Cross multiply
    236,737.82x = 355,108.05 × 78,965.84
  4. Step 4: Simplify right side
    236,737.82x = 28,041,403,683.47
  5. Step 5: Solve for x
    x = 28,041,403,683.47/236,737.82
  6. Step 6: Final answer
    x = 118,449.20

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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.