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Finding the Fourth Proportional to 100,293.84, 150,437.11 and 40,340.88

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Solution

The fourth proportional to 100,293.84, 150,437.11 and 40,340.88 is: 60,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,293.84 : 150,437.11 = 40,340.88 : x
  2. Step 2: Convert to fraction form
    100,293.84/150,437.11 = 40,340.88/x
  3. Step 3: Cross multiply
    100,293.84x = 150,437.11 × 40,340.88
  4. Step 4: Simplify right side
    100,293.84x = 6,068,765,301.20
  5. Step 5: Solve for x
    x = 6,068,765,301.20/100,293.84
  6. Step 6: Final answer
    x = 60,509.85

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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.