Home / 268,975.20-403,462.80-91,682.40

Finding the Fourth Proportional to 268,975.20, 403,462.80 and 91,682.40

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Solution

The fourth proportional to 268,975.20, 403,462.80 and 91,682.40 is: 137,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,975.20 : 403,462.80 = 91,682.40 : x
  2. Step 2: Convert to fraction form
    268,975.20/403,462.80 = 91,682.40/x
  3. Step 3: Cross multiply
    268,975.20x = 403,462.80 × 91,682.40
  4. Step 4: Simplify right side
    268,975.20x = 36,990,437,814.72
  5. Step 5: Solve for x
    x = 36,990,437,814.72/268,975.20
  6. Step 6: Final answer
    x = 137,523.60

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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.