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Finding the Fourth Proportional to 217,777.86, 300,532.41 and 122,292.90

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Solution

The fourth proportional to 217,777.86, 300,532.41 and 122,292.90 is: 168,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,777.86 : 300,532.41 = 122,292.90 : x
  2. Step 2: Convert to fraction form
    217,777.86/300,532.41 = 122,292.90/x
  3. Step 3: Cross multiply
    217,777.86x = 300,532.41 × 122,292.90
  4. Step 4: Simplify right side
    217,777.86x = 36,752,979,962.89
  5. Step 5: Solve for x
    x = 36,752,979,962.89/217,777.86
  6. Step 6: Final answer
    x = 168,763.62

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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.