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Finding the Fourth Proportional to 268,885.64, 403,577.84 and 135,859.32

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Solution

The fourth proportional to 268,885.64, 403,577.84 and 135,859.32 is: 203,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,885.64 : 403,577.84 = 135,859.32 : x
  2. Step 2: Convert to fraction form
    268,885.64/403,577.84 = 135,859.32/x
  3. Step 3: Cross multiply
    268,885.64x = 403,577.84 × 135,859.32
  4. Step 4: Simplify right side
    268,885.64x = 54,829,811,249.12
  5. Step 5: Solve for x
    x = 54,829,811,249.12/268,885.64
  6. Step 6: Final answer
    x = 203,914.98

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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.