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Finding the Fourth Proportional to 500,449.82, 750,671.94 and 121,370.30

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Solution

The fourth proportional to 500,449.82, 750,671.94 and 121,370.30 is: 182,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,449.82 : 750,671.94 = 121,370.30 : x
  2. Step 2: Convert to fraction form
    500,449.82/750,671.94 = 121,370.30/x
  3. Step 3: Cross multiply
    500,449.82x = 750,671.94 × 121,370.30
  4. Step 4: Simplify right side
    500,449.82x = 91,109,278,559.38
  5. Step 5: Solve for x
    x = 91,109,278,559.38/500,449.82
  6. Step 6: Final answer
    x = 182,054.77

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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.