Home / 268,285.16-402,426.30-68,605.22

Finding the Fourth Proportional to 268,285.16, 402,426.30 and 68,605.22

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Solution

The fourth proportional to 268,285.16, 402,426.30 and 68,605.22 is: 102,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,285.16 : 402,426.30 = 68,605.22 : x
  2. Step 2: Convert to fraction form
    268,285.16/402,426.30 = 68,605.22/x
  3. Step 3: Cross multiply
    268,285.16x = 402,426.30 × 68,605.22
  4. Step 4: Simplify right side
    268,285.16x = 27,608,544,845.29
  5. Step 5: Solve for x
    x = 27,608,544,845.29/268,285.16
  6. Step 6: Final answer
    x = 102,907.46

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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.