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Finding the Fourth Proportional to 630,115.28, 945,224.12 and 186,882

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Solution

The fourth proportional to 630,115.28, 945,224.12 and 186,882 is: 280,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,115.28 : 945,224.12 = 186,882 : x
  2. Step 2: Convert to fraction form
    630,115.28/945,224.12 = 186,882/x
  3. Step 3: Cross multiply
    630,115.28x = 945,224.12 × 186,882
  4. Step 4: Simplify right side
    630,115.28x = 176,645,373,993.84
  5. Step 5: Solve for x
    x = 176,645,373,993.84/630,115.28
  6. Step 6: Final answer
    x = 280,338.19

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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.