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Finding the Fourth Proportional to 236,497.60, 354,746.40 and 218,612.80

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Solution

The fourth proportional to 236,497.60, 354,746.40 and 218,612.80 is: 327,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,497.60 : 354,746.40 = 218,612.80 : x
  2. Step 2: Convert to fraction form
    236,497.60/354,746.40 = 218,612.80/x
  3. Step 3: Cross multiply
    236,497.60x = 354,746.40 × 218,612.80
  4. Step 4: Simplify right side
    236,497.60x = 77,552,103,793.92
  5. Step 5: Solve for x
    x = 77,552,103,793.92/236,497.60
  6. Step 6: Final answer
    x = 327,919.20

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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.