Home / 257,140.30-385,772.03-107,297.23

Finding the Fourth Proportional to 257,140.30, 385,772.03 and 107,297.23

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Solution

The fourth proportional to 257,140.30, 385,772.03 and 107,297.23 is: 160,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,140.30 : 385,772.03 = 107,297.23 : x
  2. Step 2: Convert to fraction form
    257,140.30/385,772.03 = 107,297.23/x
  3. Step 3: Cross multiply
    257,140.30x = 385,772.03 × 107,297.23
  4. Step 4: Simplify right side
    257,140.30x = 41,392,269,693.99
  5. Step 5: Solve for x
    x = 41,392,269,693.99/257,140.30
  6. Step 6: Final answer
    x = 160,971.54

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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.