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Finding the Fourth Proportional to 268,208.88, 402,313.26 and 68,529.64

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Solution

The fourth proportional to 268,208.88, 402,313.26 and 68,529.64 is: 102,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,208.88 : 402,313.26 = 68,529.64 : x
  2. Step 2: Convert to fraction form
    268,208.88/402,313.26 = 68,529.64/x
  3. Step 3: Cross multiply
    268,208.88x = 402,313.26 × 68,529.64
  4. Step 4: Simplify right side
    268,208.88x = 27,570,382,875.03
  5. Step 5: Solve for x
    x = 27,570,382,875.03/268,208.88
  6. Step 6: Final answer
    x = 102,794.44

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1.5x scale

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.