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Finding the Fourth Proportional to 213,379.28, 294,462.28 and 117,892.56

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Solution

The fourth proportional to 213,379.28, 294,462.28 and 117,892.56 is: 162,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,379.28 : 294,462.28 = 117,892.56 : x
  2. Step 2: Convert to fraction form
    213,379.28/294,462.28 = 117,892.56/x
  3. Step 3: Cross multiply
    213,379.28x = 294,462.28 × 117,892.56
  4. Step 4: Simplify right side
    213,379.28x = 34,714,912,012.64
  5. Step 5: Solve for x
    x = 34,714,912,012.64/213,379.28
  6. Step 6: Final answer
    x = 162,691.11

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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.