Home / 378,142.20-566,522.10-307,639.80

Finding the Fourth Proportional to 378,142.20, 566,522.10 and 307,639.80

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Solution

The fourth proportional to 378,142.20, 566,522.10 and 307,639.80 is: 460,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,142.20 : 566,522.10 = 307,639.80 : x
  2. Step 2: Convert to fraction form
    378,142.20/566,522.10 = 307,639.80/x
  3. Step 3: Cross multiply
    378,142.20x = 566,522.10 × 307,639.80
  4. Step 4: Simplify right side
    378,142.20x = 174,284,745,539.58
  5. Step 5: Solve for x
    x = 174,284,745,539.58/378,142.20
  6. Step 6: Final answer
    x = 460,897.37

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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.