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Finding the Fourth Proportional to 211,863.03, 317,795.04 and 51,939.66

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Solution

The fourth proportional to 211,863.03, 317,795.04 and 51,939.66 is: 77,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,863.03 : 317,795.04 = 51,939.66 : x
  2. Step 2: Convert to fraction form
    211,863.03/317,795.04 = 51,939.66/x
  3. Step 3: Cross multiply
    211,863.03x = 317,795.04 × 51,939.66
  4. Step 4: Simplify right side
    211,863.03x = 16,506,166,327.29
  5. Step 5: Solve for x
    x = 16,506,166,327.29/211,863.03
  6. Step 6: Final answer
    x = 77,909.61

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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.