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Finding the Fourth Proportional to 445,056.84, 667,428.04 and 192,327.12

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Solution

The fourth proportional to 445,056.84, 667,428.04 and 192,327.12 is: 288,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,056.84 : 667,428.04 = 192,327.12 : x
  2. Step 2: Convert to fraction form
    445,056.84/667,428.04 = 192,327.12/x
  3. Step 3: Cross multiply
    445,056.84x = 667,428.04 × 192,327.12
  4. Step 4: Simplify right side
    445,056.84x = 128,364,512,740.45
  5. Step 5: Solve for x
    x = 128,364,512,740.45/445,056.84
  6. Step 6: Final answer
    x = 288,422.74

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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.