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Finding the Fourth Proportional to 236,776.76, 355,168.22 and 79,005.21

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Solution

The fourth proportional to 236,776.76, 355,168.22 and 79,005.21 is: 118,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,776.76 : 355,168.22 = 79,005.21 : x
  2. Step 2: Convert to fraction form
    236,776.76/355,168.22 = 79,005.21/x
  3. Step 3: Cross multiply
    236,776.76x = 355,168.22 × 79,005.21
  4. Step 4: Simplify right side
    236,776.76x = 28,060,140,391.96
  5. Step 5: Solve for x
    x = 28,060,140,391.96/236,776.76
  6. Step 6: Final answer
    x = 118,508.85

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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.