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Finding the Fourth Proportional to 303,592.89, 455,396.64 and 103,911.96

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Solution

The fourth proportional to 303,592.89, 455,396.64 and 103,911.96 is: 155,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,592.89 : 455,396.64 = 103,911.96 : x
  2. Step 2: Convert to fraction form
    303,592.89/455,396.64 = 103,911.96/x
  3. Step 3: Cross multiply
    303,592.89x = 455,396.64 × 103,911.96
  4. Step 4: Simplify right side
    303,592.89x = 47,321,157,439.81
  5. Step 5: Solve for x
    x = 47,321,157,439.81/303,592.89
  6. Step 6: Final answer
    x = 155,870.44

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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.