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Finding the Fourth Proportional to 492,305.39, 738,457.86 and 155,379.82

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Solution

The fourth proportional to 492,305.39, 738,457.86 and 155,379.82 is: 233,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,305.39 : 738,457.86 = 155,379.82 : x
  2. Step 2: Convert to fraction form
    492,305.39/738,457.86 = 155,379.82/x
  3. Step 3: Cross multiply
    492,305.39x = 738,457.86 × 155,379.82
  4. Step 4: Simplify right side
    492,305.39x = 114,741,449,485.52
  5. Step 5: Solve for x
    x = 114,741,449,485.52/492,305.39
  6. Step 6: Final answer
    x = 233,069.66

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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.