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Finding the Fourth Proportional to 401,813.50, 605,126.44 and 365,941.30

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Solution

The fourth proportional to 401,813.50, 605,126.44 and 365,941.30 is: 551,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,813.50 : 605,126.44 = 365,941.30 : x
  2. Step 2: Convert to fraction form
    401,813.50/605,126.44 = 365,941.30/x
  3. Step 3: Cross multiply
    401,813.50x = 605,126.44 × 365,941.30
  4. Step 4: Simplify right side
    401,813.50x = 221,440,756,117.97
  5. Step 5: Solve for x
    x = 221,440,756,117.97/401,813.50
  6. Step 6: Final answer
    x = 551,103.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.