Home / 257,150.10-385,786.74-107,307.03

Finding the Fourth Proportional to 257,150.10, 385,786.74 and 107,307.03

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Solution

The fourth proportional to 257,150.10, 385,786.74 and 107,307.03 is: 160,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,150.10 : 385,786.74 = 107,307.03 : x
  2. Step 2: Convert to fraction form
    257,150.10/385,786.74 = 107,307.03/x
  3. Step 3: Cross multiply
    257,150.10x = 385,786.74 × 107,307.03
  4. Step 4: Simplify right side
    257,150.10x = 41,397,629,282.78
  5. Step 5: Solve for x
    x = 41,397,629,282.78/257,150.10
  6. Step 6: Final answer
    x = 160,986.25

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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.