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Finding the Fourth Proportional to 100,188.40, 150,278.40 and 25,307.44

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Solution

The fourth proportional to 100,188.40, 150,278.40 and 25,307.44 is: 37,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.40 : 150,278.40 = 25,307.44 : x
  2. Step 2: Convert to fraction form
    100,188.40/150,278.40 = 25,307.44/x
  3. Step 3: Cross multiply
    100,188.40x = 150,278.40 × 25,307.44
  4. Step 4: Simplify right side
    100,188.40x = 3,803,161,591.30
  5. Step 5: Solve for x
    x = 3,803,161,591.30/100,188.40
  6. Step 6: Final answer
    x = 37,960.10

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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.