Home / 251,618.18-377,141.12-131,489.90

Finding the Fourth Proportional to 251,618.18, 377,141.12 and 131,489.90

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Solution

The fourth proportional to 251,618.18, 377,141.12 and 131,489.90 is: 197,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,618.18 : 377,141.12 = 131,489.90 : x
  2. Step 2: Convert to fraction form
    251,618.18/377,141.12 = 131,489.90/x
  3. Step 3: Cross multiply
    251,618.18x = 377,141.12 × 131,489.90
  4. Step 4: Simplify right side
    251,618.18x = 49,590,248,154.69
  5. Step 5: Solve for x
    x = 49,590,248,154.69/251,618.18
  6. Step 6: Final answer
    x = 197,085.31

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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.