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Finding the Fourth Proportional to 217,752.92, 300,523.16 and 127,131.16

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Solution

The fourth proportional to 217,752.92, 300,523.16 and 127,131.16 is: 175,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,752.92 : 300,523.16 = 127,131.16 : x
  2. Step 2: Convert to fraction form
    217,752.92/300,523.16 = 127,131.16/x
  3. Step 3: Cross multiply
    217,752.92x = 300,523.16 × 127,131.16
  4. Step 4: Simplify right side
    217,752.92x = 38,205,857,937.67
  5. Step 5: Solve for x
    x = 38,205,857,937.67/217,752.92
  6. Step 6: Final answer
    x = 175,455.09

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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.