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Finding the Fourth Proportional to 243,985.23, 365,940.41 and 66,506.47

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Solution

The fourth proportional to 243,985.23, 365,940.41 and 66,506.47 is: 99,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,985.23 : 365,940.41 = 66,506.47 : x
  2. Step 2: Convert to fraction form
    243,985.23/365,940.41 = 66,506.47/x
  3. Step 3: Cross multiply
    243,985.23x = 365,940.41 × 66,506.47
  4. Step 4: Simplify right side
    243,985.23x = 24,337,404,566.92
  5. Step 5: Solve for x
    x = 24,337,404,566.92/243,985.23
  6. Step 6: Final answer
    x = 99,749.50

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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.