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Finding the Fourth Proportional to 492,250, 679,305.28 and 265,895.50

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Solution

The fourth proportional to 492,250, 679,305.28 and 265,895.50 is: 366,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,250 : 679,305.28 = 265,895.50 : x
  2. Step 2: Convert to fraction form
    492,250/679,305.28 = 265,895.50/x
  3. Step 3: Cross multiply
    492,250x = 679,305.28 × 265,895.50
  4. Step 4: Simplify right side
    492,250x = 180,624,217,078.24
  5. Step 5: Solve for x
    x = 180,624,217,078.24/492,250
  6. Step 6: Final answer
    x = 366,935.94

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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.