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Finding the Fourth Proportional to 215,802.56, 297,935.26 and 191,863

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Solution

The fourth proportional to 215,802.56, 297,935.26 and 191,863 is: 264,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,802.56 : 297,935.26 = 191,863 : x
  2. Step 2: Convert to fraction form
    215,802.56/297,935.26 = 191,863/x
  3. Step 3: Cross multiply
    215,802.56x = 297,935.26 × 191,863
  4. Step 4: Simplify right side
    215,802.56x = 57,162,752,789.38
  5. Step 5: Solve for x
    x = 57,162,752,789.38/215,802.56
  6. Step 6: Final answer
    x = 264,884.50

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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.