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Finding the Fourth Proportional to 236,998.80, 355,546.80 and 79,340.40

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Solution

The fourth proportional to 236,998.80, 355,546.80 and 79,340.40 is: 119,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,998.80 : 355,546.80 = 79,340.40 : x
  2. Step 2: Convert to fraction form
    236,998.80/355,546.80 = 79,340.40/x
  3. Step 3: Cross multiply
    236,998.80x = 355,546.80 × 79,340.40
  4. Step 4: Simplify right side
    236,998.80x = 28,209,225,330.72
  5. Step 5: Solve for x
    x = 28,209,225,330.72/236,998.80
  6. Step 6: Final answer
    x = 119,026.87

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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.