Home / 211,165.18-316,011.44-172,770.72

Finding the Fourth Proportional to 211,165.18, 316,011.44 and 172,770.72

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Solution

The fourth proportional to 211,165.18, 316,011.44 and 172,770.72 is: 258,553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,165.18 : 316,011.44 = 172,770.72 : x
  2. Step 2: Convert to fraction form
    211,165.18/316,011.44 = 172,770.72/x
  3. Step 3: Cross multiply
    211,165.18x = 316,011.44 × 172,770.72
  4. Step 4: Simplify right side
    211,165.18x = 54,597,524,448.96
  5. Step 5: Solve for x
    x = 54,597,524,448.96/211,165.18
  6. Step 6: Final answer
    x = 258,553.64

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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.