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Finding the Fourth Proportional to 533,424.75, 800,137.14 and 139,440.75

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Solution

The fourth proportional to 533,424.75, 800,137.14 and 139,440.75 is: 209,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,424.75 : 800,137.14 = 139,440.75 : x
  2. Step 2: Convert to fraction form
    533,424.75/800,137.14 = 139,440.75/x
  3. Step 3: Cross multiply
    533,424.75x = 800,137.14 × 139,440.75
  4. Step 4: Simplify right side
    533,424.75x = 111,571,722,904.46
  5. Step 5: Solve for x
    x = 111,571,722,904.46/533,424.75
  6. Step 6: Final answer
    x = 209,161.13

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Similar ratio
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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.