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Finding the Fourth Proportional to 165,356.60, 247,975.34 and 57,256.58

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Solution

The fourth proportional to 165,356.60, 247,975.34 and 57,256.58 is: 85,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,356.60 : 247,975.34 = 57,256.58 : x
  2. Step 2: Convert to fraction form
    165,356.60/247,975.34 = 57,256.58/x
  3. Step 3: Cross multiply
    165,356.60x = 247,975.34 × 57,256.58
  4. Step 4: Simplify right side
    165,356.60x = 14,198,220,226.39
  5. Step 5: Solve for x
    x = 14,198,220,226.39/165,356.60
  6. Step 6: Final answer
    x = 85,864.25

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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.