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Finding the Fourth Proportional to 247,780.35, 341,991.32 and 162,905.31

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Solution

The fourth proportional to 247,780.35, 341,991.32 and 162,905.31 is: 224,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,780.35 : 341,991.32 = 162,905.31 : x
  2. Step 2: Convert to fraction form
    247,780.35/341,991.32 = 162,905.31/x
  3. Step 3: Cross multiply
    247,780.35x = 341,991.32 × 162,905.31
  4. Step 4: Simplify right side
    247,780.35x = 55,712,201,187.38
  5. Step 5: Solve for x
    x = 55,712,201,187.38/247,780.35
  6. Step 6: Final answer
    x = 224,845.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.