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Finding the Fourth Proportional to 268,892.80, 403,630.80 and 169,165.60

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Solution

The fourth proportional to 268,892.80, 403,630.80 and 169,165.60 is: 253,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,892.80 : 403,630.80 = 169,165.60 : x
  2. Step 2: Convert to fraction form
    268,892.80/403,630.80 = 169,165.60/x
  3. Step 3: Cross multiply
    268,892.80x = 403,630.80 × 169,165.60
  4. Step 4: Simplify right side
    268,892.80x = 68,280,446,460.48
  5. Step 5: Solve for x
    x = 68,280,446,460.48/268,892.80
  6. Step 6: Final answer
    x = 253,931.85

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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.