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Finding the Fourth Proportional to 288,367.16, 395,056.42 and 277,585.54

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Solution

The fourth proportional to 288,367.16, 395,056.42 and 277,585.54 is: 380,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,367.16 : 395,056.42 = 277,585.54 : x
  2. Step 2: Convert to fraction form
    288,367.16/395,056.42 = 277,585.54/x
  3. Step 3: Cross multiply
    288,367.16x = 395,056.42 × 277,585.54
  4. Step 4: Simplify right side
    288,367.16x = 109,661,947,994.56
  5. Step 5: Solve for x
    x = 109,661,947,994.56/288,367.16
  6. Step 6: Final answer
    x = 380,285.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.