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Finding the Fourth Proportional to 363,445.60, 545,686.80 and 275,317.60

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Solution

The fourth proportional to 363,445.60, 545,686.80 and 275,317.60 is: 413,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,445.60 : 545,686.80 = 275,317.60 : x
  2. Step 2: Convert to fraction form
    363,445.60/545,686.80 = 275,317.60/x
  3. Step 3: Cross multiply
    363,445.60x = 545,686.80 × 275,317.60
  4. Step 4: Simplify right side
    363,445.60x = 150,237,180,127.68
  5. Step 5: Solve for x
    x = 150,237,180,127.68/363,445.60
  6. Step 6: Final answer
    x = 413,369.10

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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.