Home / 255,185.09-382,778.53-75,272.73

Finding the Fourth Proportional to 255,185.09, 382,778.53 and 75,272.73

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Solution

The fourth proportional to 255,185.09, 382,778.53 and 75,272.73 is: 112,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,185.09 : 382,778.53 = 75,272.73 : x
  2. Step 2: Convert to fraction form
    255,185.09/382,778.53 = 75,272.73/x
  3. Step 3: Cross multiply
    255,185.09x = 382,778.53 × 75,272.73
  4. Step 4: Simplify right side
    255,185.09x = 28,812,784,938.49
  5. Step 5: Solve for x
    x = 28,812,784,938.49/255,185.09
  6. Step 6: Final answer
    x = 112,909.36

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1.5x scale

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.