Home / 257,144.04-385,375.86-186,304.68

Finding the Fourth Proportional to 257,144.04, 385,375.86 and 186,304.68

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Solution

The fourth proportional to 257,144.04, 385,375.86 and 186,304.68 is: 279,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,144.04 : 385,375.86 = 186,304.68 : x
  2. Step 2: Convert to fraction form
    257,144.04/385,375.86 = 186,304.68/x
  3. Step 3: Cross multiply
    257,144.04x = 385,375.86 × 186,304.68
  4. Step 4: Simplify right side
    257,144.04x = 71,797,326,277.02
  5. Step 5: Solve for x
    x = 71,797,326,277.02/257,144.04
  6. Step 6: Final answer
    x = 279,210.54

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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.