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Finding the Fourth Proportional to 217,042.60, 325,563.90 and 133,061.80

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Solution

The fourth proportional to 217,042.60, 325,563.90 and 133,061.80 is: 199,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,042.60 : 325,563.90 = 133,061.80 : x
  2. Step 2: Convert to fraction form
    217,042.60/325,563.90 = 133,061.80/x
  3. Step 3: Cross multiply
    217,042.60x = 325,563.90 × 133,061.80
  4. Step 4: Simplify right side
    217,042.60x = 43,320,118,549.02
  5. Step 5: Solve for x
    x = 43,320,118,549.02/217,042.60
  6. Step 6: Final answer
    x = 199,592.70

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1.5x scale

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.