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Finding the Fourth Proportional to 255,845.20, 383,443.80 and 97,862.80

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Solution

The fourth proportional to 255,845.20, 383,443.80 and 97,862.80 is: 146,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,845.20 : 383,443.80 = 97,862.80 : x
  2. Step 2: Convert to fraction form
    255,845.20/383,443.80 = 97,862.80/x
  3. Step 3: Cross multiply
    255,845.20x = 383,443.80 × 97,862.80
  4. Step 4: Simplify right side
    255,845.20x = 37,524,883,910.64
  5. Step 5: Solve for x
    x = 37,524,883,910.64/255,845.20
  6. Step 6: Final answer
    x = 146,670.27

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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.