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Finding the Fourth Proportional to 516,869.28, 775,303.95 and 161,910.94

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Solution

The fourth proportional to 516,869.28, 775,303.95 and 161,910.94 is: 242,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,869.28 : 775,303.95 = 161,910.94 : x
  2. Step 2: Convert to fraction form
    516,869.28/775,303.95 = 161,910.94/x
  3. Step 3: Cross multiply
    516,869.28x = 775,303.95 × 161,910.94
  4. Step 4: Simplify right side
    516,869.28x = 125,530,191,330.21
  5. Step 5: Solve for x
    x = 125,530,191,330.21/516,869.28
  6. Step 6: Final answer
    x = 242,866.42

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.