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Finding the Fourth Proportional to 492,243.28, 679,295.72 and 265,888.80

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Solution

The fourth proportional to 492,243.28, 679,295.72 and 265,888.80 is: 366,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,243.28 : 679,295.72 = 265,888.80 : x
  2. Step 2: Convert to fraction form
    492,243.28/679,295.72 = 265,888.80/x
  3. Step 3: Cross multiply
    492,243.28x = 679,295.72 × 265,888.80
  4. Step 4: Simplify right side
    492,243.28x = 180,617,123,835.94
  5. Step 5: Solve for x
    x = 180,617,123,835.94/492,243.28
  6. Step 6: Final answer
    x = 366,926.54

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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.