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Finding the Fourth Proportional to 251,550.40, 377,325.60 and 85,339.84

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Solution

The fourth proportional to 251,550.40, 377,325.60 and 85,339.84 is: 128,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,550.40 : 377,325.60 = 85,339.84 : x
  2. Step 2: Convert to fraction form
    251,550.40/377,325.60 = 85,339.84/x
  3. Step 3: Cross multiply
    251,550.40x = 377,325.60 × 85,339.84
  4. Step 4: Simplify right side
    251,550.40x = 32,200,906,331.90
  5. Step 5: Solve for x
    x = 32,200,906,331.90/251,550.40
  6. Step 6: Final answer
    x = 128,009.76

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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.