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Finding the Fourth Proportional to 100,276.70, 150,378.60 and 50,340.20

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Solution

The fourth proportional to 100,276.70, 150,378.60 and 50,340.20 is: 75,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,276.70 : 150,378.60 = 50,340.20 : x
  2. Step 2: Convert to fraction form
    100,276.70/150,378.60 = 50,340.20/x
  3. Step 3: Cross multiply
    100,276.70x = 150,378.60 × 50,340.20
  4. Step 4: Simplify right side
    100,276.70x = 7,570,088,799.72
  5. Step 5: Solve for x
    x = 7,570,088,799.72/100,276.70
  6. Step 6: Final answer
    x = 75,492.00

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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.