Home / 257,980.89-385,970.18-226,151.54

Finding the Fourth Proportional to 257,980.89, 385,970.18 and 226,151.54

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Solution

The fourth proportional to 257,980.89, 385,970.18 and 226,151.54 is: 338,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,980.89 : 385,970.18 = 226,151.54 : x
  2. Step 2: Convert to fraction form
    257,980.89/385,970.18 = 226,151.54/x
  3. Step 3: Cross multiply
    257,980.89x = 385,970.18 × 226,151.54
  4. Step 4: Simplify right side
    257,980.89x = 87,287,747,540.47
  5. Step 5: Solve for x
    x = 87,287,747,540.47/257,980.89
  6. Step 6: Final answer
    x = 338,349.66

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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.