Home / 211,192.18-316,451.31-154,770.82

Finding the Fourth Proportional to 211,192.18, 316,451.31 and 154,770.82

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Solution

The fourth proportional to 211,192.18, 316,451.31 and 154,770.82 is: 231,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,192.18 : 316,451.31 = 154,770.82 : x
  2. Step 2: Convert to fraction form
    211,192.18/316,451.31 = 154,770.82/x
  3. Step 3: Cross multiply
    211,192.18x = 316,451.31 × 154,770.82
  4. Step 4: Simplify right side
    211,192.18x = 48,977,428,738.77
  5. Step 5: Solve for x
    x = 48,977,428,738.77/211,192.18
  6. Step 6: Final answer
    x = 231,909.29

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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.