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Finding the Fourth Proportional to 255,901.55, 383,740.79 and 135,932.22

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Solution

The fourth proportional to 255,901.55, 383,740.79 and 135,932.22 is: 203,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,901.55 : 383,740.79 = 135,932.22 : x
  2. Step 2: Convert to fraction form
    255,901.55/383,740.79 = 135,932.22/x
  3. Step 3: Cross multiply
    255,901.55x = 383,740.79 × 135,932.22
  4. Step 4: Simplify right side
    255,901.55x = 52,162,736,809.59
  5. Step 5: Solve for x
    x = 52,162,736,809.59/255,901.55
  6. Step 6: Final answer
    x = 203,839.09

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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.