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Finding the Fourth Proportional to 203,483.24, 304,915.02 and 103,493.60

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Solution

The fourth proportional to 203,483.24, 304,915.02 and 103,493.60 is: 155,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,483.24 : 304,915.02 = 103,493.60 : x
  2. Step 2: Convert to fraction form
    203,483.24/304,915.02 = 103,493.60/x
  3. Step 3: Cross multiply
    203,483.24x = 304,915.02 × 103,493.60
  4. Step 4: Simplify right side
    203,483.24x = 31,556,753,113.87
  5. Step 5: Solve for x
    x = 31,556,753,113.87/203,483.24
  6. Step 6: Final answer
    x = 155,082.81

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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.