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Finding the Fourth Proportional to 303,414.90, 455,231.70 and 292,479.90

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Solution

The fourth proportional to 303,414.90, 455,231.70 and 292,479.90 is: 438,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,414.90 : 455,231.70 = 292,479.90 : x
  2. Step 2: Convert to fraction form
    303,414.90/455,231.70 = 292,479.90/x
  3. Step 3: Cross multiply
    303,414.90x = 455,231.70 × 292,479.90
  4. Step 4: Simplify right side
    303,414.90x = 133,146,122,092.83
  5. Step 5: Solve for x
    x = 133,146,122,092.83/303,414.90
  6. Step 6: Final answer
    x = 438,825.26

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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.