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Finding the Fourth Proportional to 217,999.54, 300,841.35 and 131,960.50

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Solution

The fourth proportional to 217,999.54, 300,841.35 and 131,960.50 is: 182,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,999.54 : 300,841.35 = 131,960.50 : x
  2. Step 2: Convert to fraction form
    217,999.54/300,841.35 = 131,960.50/x
  3. Step 3: Cross multiply
    217,999.54x = 300,841.35 × 131,960.50
  4. Step 4: Simplify right side
    217,999.54x = 39,699,174,966.68
  5. Step 5: Solve for x
    x = 39,699,174,966.68/217,999.54
  6. Step 6: Final answer
    x = 182,106.69

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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.