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Finding the Fourth Proportional to 302,912.47, 454,422.70 and 100,520.74

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Solution

The fourth proportional to 302,912.47, 454,422.70 and 100,520.74 is: 150,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,912.47 : 454,422.70 = 100,520.74 : x
  2. Step 2: Convert to fraction form
    302,912.47/454,422.70 = 100,520.74/x
  3. Step 3: Cross multiply
    302,912.47x = 454,422.70 × 100,520.74
  4. Step 4: Simplify right side
    302,912.47x = 45,678,905,066.39
  5. Step 5: Solve for x
    x = 45,678,905,066.39/302,912.47
  6. Step 6: Final answer
    x = 150,799.02

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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.