Home / 257,914.60-385,997.10-226,421.80

Finding the Fourth Proportional to 257,914.60, 385,997.10 and 226,421.80

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Solution

The fourth proportional to 257,914.60, 385,997.10 and 226,421.80 is: 338,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,914.60 : 385,997.10 = 226,421.80 : x
  2. Step 2: Convert to fraction form
    257,914.60/385,997.10 = 226,421.80/x
  3. Step 3: Cross multiply
    257,914.60x = 385,997.10 × 226,421.80
  4. Step 4: Simplify right side
    257,914.60x = 87,398,158,176.78
  5. Step 5: Solve for x
    x = 87,398,158,176.78/257,914.60
  6. Step 6: Final answer
    x = 338,864.72

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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.