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Finding the Fourth Proportional to 508,758.20, 763,153.54 and 255,900.60

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Solution

The fourth proportional to 508,758.20, 763,153.54 and 255,900.60 is: 383,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,758.20 : 763,153.54 = 255,900.60 : x
  2. Step 2: Convert to fraction form
    508,758.20/763,153.54 = 255,900.60/x
  3. Step 3: Cross multiply
    508,758.20x = 763,153.54 × 255,900.60
  4. Step 4: Simplify right side
    508,758.20x = 195,291,448,778.12
  5. Step 5: Solve for x
    x = 195,291,448,778.12/508,758.20
  6. Step 6: Final answer
    x = 383,859.07

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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.