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Finding the Fourth Proportional to 268,887.80, 403,331.70 and 248,612.60

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Solution

The fourth proportional to 268,887.80, 403,331.70 and 248,612.60 is: 372,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,887.80 : 403,331.70 = 248,612.60 : x
  2. Step 2: Convert to fraction form
    268,887.80/403,331.70 = 248,612.60/x
  3. Step 3: Cross multiply
    268,887.80x = 403,331.70 × 248,612.60
  4. Step 4: Simplify right side
    268,887.80x = 100,273,342,599.42
  5. Step 5: Solve for x
    x = 100,273,342,599.42/268,887.80
  6. Step 6: Final answer
    x = 372,918.90

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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.