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Finding the Fourth Proportional to 257,549.60, 385,449.60 and 226,056.80

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Solution

The fourth proportional to 257,549.60, 385,449.60 and 226,056.80 is: 338,317.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,549.60 : 385,449.60 = 226,056.80 : x
  2. Step 2: Convert to fraction form
    257,549.60/385,449.60 = 226,056.80/x
  3. Step 3: Cross multiply
    257,549.60x = 385,449.60 × 226,056.80
  4. Step 4: Simplify right side
    257,549.60x = 87,133,503,137.28
  5. Step 5: Solve for x
    x = 87,133,503,137.28/257,549.60
  6. Step 6: Final answer
    x = 338,317.37

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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.