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Finding the Fourth Proportional to 255,570.45, 383,359.67 and 75,674.13

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Solution

The fourth proportional to 255,570.45, 383,359.67 and 75,674.13 is: 113,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,570.45 : 383,359.67 = 75,674.13 : x
  2. Step 2: Convert to fraction form
    255,570.45/383,359.67 = 75,674.13/x
  3. Step 3: Cross multiply
    255,570.45x = 383,359.67 × 75,674.13
  4. Step 4: Simplify right side
    255,570.45x = 29,010,407,972.15
  5. Step 5: Solve for x
    x = 29,010,407,972.15/255,570.45
  6. Step 6: Final answer
    x = 113,512.37

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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.