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Finding the Fourth Proportional to 236,959.80, 355,462 and 87,202.96

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Solution

The fourth proportional to 236,959.80, 355,462 and 87,202.96 is: 130,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,959.80 : 355,462 = 87,202.96 : x
  2. Step 2: Convert to fraction form
    236,959.80/355,462 = 87,202.96/x
  3. Step 3: Cross multiply
    236,959.80x = 355,462 × 87,202.96
  4. Step 4: Simplify right side
    236,959.80x = 30,997,338,567.52
  5. Step 5: Solve for x
    x = 30,997,338,567.52/236,959.80
  6. Step 6: Final answer
    x = 130,812.65

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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.