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Finding the Fourth Proportional to 393,379.90, 590,070.60 and 168,594.58

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Solution

The fourth proportional to 393,379.90, 590,070.60 and 168,594.58 is: 252,892.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,379.90 : 590,070.60 = 168,594.58 : x
  2. Step 2: Convert to fraction form
    393,379.90/590,070.60 = 168,594.58/x
  3. Step 3: Cross multiply
    393,379.90x = 590,070.60 × 168,594.58
  4. Step 4: Simplify right side
    393,379.90x = 99,482,704,977.35
  5. Step 5: Solve for x
    x = 99,482,704,977.35/393,379.90
  6. Step 6: Final answer
    x = 252,892.19

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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.