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Finding the Fourth Proportional to 268,326.32, 402,485.36 and 68,645.01

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Solution

The fourth proportional to 268,326.32, 402,485.36 and 68,645.01 is: 102,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,326.32 : 402,485.36 = 68,645.01 : x
  2. Step 2: Convert to fraction form
    268,326.32/402,485.36 = 68,645.01/x
  3. Step 3: Cross multiply
    268,326.32x = 402,485.36 × 68,645.01
  4. Step 4: Simplify right side
    268,326.32x = 27,628,611,733.67
  5. Step 5: Solve for x
    x = 27,628,611,733.67/268,326.32
  6. Step 6: Final answer
    x = 102,966.46

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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.