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Finding the Fourth Proportional to 461,556.30, 636,948 and 254,824.86

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Solution

The fourth proportional to 461,556.30, 636,948 and 254,824.86 is: 351,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,556.30 : 636,948 = 254,824.86 : x
  2. Step 2: Convert to fraction form
    461,556.30/636,948 = 254,824.86/x
  3. Step 3: Cross multiply
    461,556.30x = 636,948 × 254,824.86
  4. Step 4: Simplify right side
    461,556.30x = 162,310,184,927.28
  5. Step 5: Solve for x
    x = 162,310,184,927.28/461,556.30
  6. Step 6: Final answer
    x = 351,658.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.