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Finding the Fourth Proportional to 445,919.28, 615,328 and 264,600

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Solution

The fourth proportional to 445,919.28, 615,328 and 264,600 is: 365,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,919.28 : 615,328 = 264,600 : x
  2. Step 2: Convert to fraction form
    445,919.28/615,328 = 264,600/x
  3. Step 3: Cross multiply
    445,919.28x = 615,328 × 264,600
  4. Step 4: Simplify right side
    445,919.28x = 162,815,788,800
  5. Step 5: Solve for x
    x = 162,815,788,800/445,919.28
  6. Step 6: Final answer
    x = 365,123.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.