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Finding the Fourth Proportional to 215,288.88, 297,206.28 and 166,782.88

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Solution

The fourth proportional to 215,288.88, 297,206.28 and 166,782.88 is: 230,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,288.88 : 297,206.28 = 166,782.88 : x
  2. Step 2: Convert to fraction form
    215,288.88/297,206.28 = 166,782.88/x
  3. Step 3: Cross multiply
    215,288.88x = 297,206.28 × 166,782.88
  4. Step 4: Simplify right side
    215,288.88x = 49,568,919,332.49
  5. Step 5: Solve for x
    x = 49,568,919,332.49/215,288.88
  6. Step 6: Final answer
    x = 230,243.75

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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.