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Finding the Fourth Proportional to 374,477.38, 561,690.15 and 137,775.94

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Solution

The fourth proportional to 374,477.38, 561,690.15 and 137,775.94 is: 206,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,477.38 : 561,690.15 = 137,775.94 : x
  2. Step 2: Convert to fraction form
    374,477.38/561,690.15 = 137,775.94/x
  3. Step 3: Cross multiply
    374,477.38x = 561,690.15 × 137,775.94
  4. Step 4: Simplify right side
    374,477.38x = 77,387,388,404.99
  5. Step 5: Solve for x
    x = 77,387,388,404.99/374,477.38
  6. Step 6: Final answer
    x = 206,654.37

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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.