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Finding the Fourth Proportional to 492,246, 679,299.75 and 265,891.50

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Solution

The fourth proportional to 492,246, 679,299.75 and 265,891.50 is: 366,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,246 : 679,299.75 = 265,891.50 : x
  2. Step 2: Convert to fraction form
    492,246/679,299.75 = 265,891.50/x
  3. Step 3: Cross multiply
    492,246x = 679,299.75 × 265,891.50
  4. Step 4: Simplify right side
    492,246x = 180,620,029,477.13
  5. Step 5: Solve for x
    x = 180,620,029,477.13/492,246
  6. Step 6: Final answer
    x = 366,930.42

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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.