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Finding the Fourth Proportional to 236,959.07, 355,486.23 and 87,200.15

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Solution

The fourth proportional to 236,959.07, 355,486.23 and 87,200.15 is: 130,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,959.07 : 355,486.23 = 87,200.15 : x
  2. Step 2: Convert to fraction form
    236,959.07/355,486.23 = 87,200.15/x
  3. Step 3: Cross multiply
    236,959.07x = 355,486.23 × 87,200.15
  4. Step 4: Simplify right side
    236,959.07x = 30,998,450,801.50
  5. Step 5: Solve for x
    x = 30,998,450,801.50/236,959.07
  6. Step 6: Final answer
    x = 130,817.75

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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.