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Finding the Fourth Proportional to 492,328.94, 738,617.94 and 137,342.79

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Solution

The fourth proportional to 492,328.94, 738,617.94 and 137,342.79 is: 206,048.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,328.94 : 738,617.94 = 137,342.79 : x
  2. Step 2: Convert to fraction form
    492,328.94/738,617.94 = 137,342.79/x
  3. Step 3: Cross multiply
    492,328.94x = 738,617.94 × 137,342.79
  4. Step 4: Simplify right side
    492,328.94x = 101,443,848,623.65
  5. Step 5: Solve for x
    x = 101,443,848,623.65/492,328.94
  6. Step 6: Final answer
    x = 206,048.93

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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.