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Finding the Fourth Proportional to 236,898.42, 355,403.34 and 76,973.82

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Solution

The fourth proportional to 236,898.42, 355,403.34 and 76,973.82 is: 115,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,898.42 : 355,403.34 = 76,973.82 : x
  2. Step 2: Convert to fraction form
    236,898.42/355,403.34 = 76,973.82/x
  3. Step 3: Cross multiply
    236,898.42x = 355,403.34 × 76,973.82
  4. Step 4: Simplify right side
    236,898.42x = 27,356,752,720.56
  5. Step 5: Solve for x
    x = 27,356,752,720.56/236,898.42
  6. Step 6: Final answer
    x = 115,478.83

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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.