Home / 253,119.24-379,682.10-75,585.60

Finding the Fourth Proportional to 253,119.24, 379,682.10 and 75,585.60

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Solution

The fourth proportional to 253,119.24, 379,682.10 and 75,585.60 is: 113,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,119.24 : 379,682.10 = 75,585.60 : x
  2. Step 2: Convert to fraction form
    253,119.24/379,682.10 = 75,585.60/x
  3. Step 3: Cross multiply
    253,119.24x = 379,682.10 × 75,585.60
  4. Step 4: Simplify right side
    253,119.24x = 28,698,499,337.76
  5. Step 5: Solve for x
    x = 28,698,499,337.76/253,119.24
  6. Step 6: Final answer
    x = 113,379.37

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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.