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Finding the Fourth Proportional to 255,300.20, 383,123.10 and 114,986.60

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Solution

The fourth proportional to 255,300.20, 383,123.10 and 114,986.60 is: 172,557.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,300.20 : 383,123.10 = 114,986.60 : x
  2. Step 2: Convert to fraction form
    255,300.20/383,123.10 = 114,986.60/x
  3. Step 3: Cross multiply
    255,300.20x = 383,123.10 × 114,986.60
  4. Step 4: Simplify right side
    255,300.20x = 44,054,022,650.46
  5. Step 5: Solve for x
    x = 44,054,022,650.46/255,300.20
  6. Step 6: Final answer
    x = 172,557.73

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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.