Home / 211,318.40-317,269.20-166,995.20

Finding the Fourth Proportional to 211,318.40, 317,269.20 and 166,995.20

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Solution

The fourth proportional to 211,318.40, 317,269.20 and 166,995.20 is: 250,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,318.40 : 317,269.20 = 166,995.20 : x
  2. Step 2: Convert to fraction form
    211,318.40/317,269.20 = 166,995.20/x
  3. Step 3: Cross multiply
    211,318.40x = 317,269.20 × 166,995.20
  4. Step 4: Simplify right side
    211,318.40x = 52,982,433,507.84
  5. Step 5: Solve for x
    x = 52,982,433,507.84/211,318.40
  6. Step 6: Final answer
    x = 250,723.24

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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.