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Finding the Fourth Proportional to 266,124.80, 399,187.20 and 255,627.20

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Solution

The fourth proportional to 266,124.80, 399,187.20 and 255,627.20 is: 383,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,124.80 : 399,187.20 = 255,627.20 : x
  2. Step 2: Convert to fraction form
    266,124.80/399,187.20 = 255,627.20/x
  3. Step 3: Cross multiply
    266,124.80x = 399,187.20 × 255,627.20
  4. Step 4: Simplify right side
    266,124.80x = 102,043,106,211.84
  5. Step 5: Solve for x
    x = 102,043,106,211.84/266,124.80
  6. Step 6: Final answer
    x = 383,440.80

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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.