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Finding the Fourth Proportional to 491,322.41, 736,992.72 and 154,356.74

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Solution

The fourth proportional to 491,322.41, 736,992.72 and 154,356.74 is: 231,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,322.41 : 736,992.72 = 154,356.74 : x
  2. Step 2: Convert to fraction form
    491,322.41/736,992.72 = 154,356.74/x
  3. Step 3: Cross multiply
    491,322.41x = 736,992.72 × 154,356.74
  4. Step 4: Simplify right side
    491,322.41x = 113,759,793,662.93
  5. Step 5: Solve for x
    x = 113,759,793,662.93/491,322.41
  6. Step 6: Final answer
    x = 231,537.97

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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.