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Finding the Fourth Proportional to 255,752.28, 383,281.26 and 135,778.92

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Solution

The fourth proportional to 255,752.28, 383,281.26 and 135,778.92 is: 203,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,752.28 : 383,281.26 = 135,778.92 : x
  2. Step 2: Convert to fraction form
    255,752.28/383,281.26 = 135,778.92/x
  3. Step 3: Cross multiply
    255,752.28x = 383,281.26 × 135,778.92
  4. Step 4: Simplify right side
    255,752.28x = 52,041,515,539.04
  5. Step 5: Solve for x
    x = 52,041,515,539.04/255,752.28
  6. Step 6: Final answer
    x = 203,484.07

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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.