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Finding the Fourth Proportional to 445,958.94, 615,382.11 and 264,639.54

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Solution

The fourth proportional to 445,958.94, 615,382.11 and 264,639.54 is: 365,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,958.94 : 615,382.11 = 264,639.54 : x
  2. Step 2: Convert to fraction form
    445,958.94/615,382.11 = 264,639.54/x
  3. Step 3: Cross multiply
    445,958.94x = 615,382.11 × 264,639.54
  4. Step 4: Simplify right side
    445,958.94x = 162,854,438,514.63
  5. Step 5: Solve for x
    x = 162,854,438,514.63/445,958.94
  6. Step 6: Final answer
    x = 365,178.10

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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.