Home / 251,621.22-377,452.32-71,720.40

Finding the Fourth Proportional to 251,621.22, 377,452.32 and 71,720.40

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Solution

The fourth proportional to 251,621.22, 377,452.32 and 71,720.40 is: 107,586.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,621.22 : 377,452.32 = 71,720.40 : x
  2. Step 2: Convert to fraction form
    251,621.22/377,452.32 = 71,720.40/x
  3. Step 3: Cross multiply
    251,621.22x = 377,452.32 × 71,720.40
  4. Step 4: Simplify right side
    251,621.22x = 27,071,031,371.33
  5. Step 5: Solve for x
    x = 27,071,031,371.33/251,621.22
  6. Step 6: Final answer
    x = 107,586.44

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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.