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Finding the Fourth Proportional to 365,380.64, 503,766.46 and 279,445.04

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Solution

The fourth proportional to 365,380.64, 503,766.46 and 279,445.04 is: 385,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,380.64 : 503,766.46 = 279,445.04 : x
  2. Step 2: Convert to fraction form
    365,380.64/503,766.46 = 279,445.04/x
  3. Step 3: Cross multiply
    365,380.64x = 503,766.46 × 279,445.04
  4. Step 4: Simplify right side
    365,380.64x = 140,775,038,565.36
  5. Step 5: Solve for x
    x = 140,775,038,565.36/365,380.64
  6. Step 6: Final answer
    x = 385,283.24

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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.