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Finding the Fourth Proportional to 401,817.50, 605,132.48 and 365,945.30

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Solution

The fourth proportional to 401,817.50, 605,132.48 and 365,945.30 is: 551,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,817.50 : 605,132.48 = 365,945.30 : x
  2. Step 2: Convert to fraction form
    401,817.50/605,132.48 = 365,945.30/x
  3. Step 3: Cross multiply
    401,817.50x = 605,132.48 × 365,945.30
  4. Step 4: Simplify right side
    401,817.50x = 221,445,386,933.34
  5. Step 5: Solve for x
    x = 221,445,386,933.34/401,817.50
  6. Step 6: Final answer
    x = 551,109.36

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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.