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Finding the Fourth Proportional to 236,410.80, 354,664.80 and 78,752.40

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Solution

The fourth proportional to 236,410.80, 354,664.80 and 78,752.40 is: 118,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,410.80 : 354,664.80 = 78,752.40 : x
  2. Step 2: Convert to fraction form
    236,410.80/354,664.80 = 78,752.40/x
  3. Step 3: Cross multiply
    236,410.80x = 354,664.80 × 78,752.40
  4. Step 4: Simplify right side
    236,410.80x = 27,930,704,195.52
  5. Step 5: Solve for x
    x = 27,930,704,195.52/236,410.80
  6. Step 6: Final answer
    x = 118,144.79

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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.