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Finding the Fourth Proportional to 243,611.72, 365,447.28 and 103,322.96

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Solution

The fourth proportional to 243,611.72, 365,447.28 and 103,322.96 is: 154,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,611.72 : 365,447.28 = 103,322.96 : x
  2. Step 2: Convert to fraction form
    243,611.72/365,447.28 = 103,322.96/x
  3. Step 3: Cross multiply
    243,611.72x = 365,447.28 × 103,322.96
  4. Step 4: Simplify right side
    243,611.72x = 37,759,094,693.55
  5. Step 5: Solve for x
    x = 37,759,094,693.55/243,611.72
  6. Step 6: Final answer
    x = 154,997.04

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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.