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Finding the Fourth Proportional to 317,244.48, 437,800.78 and 172,050.54

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Solution

The fourth proportional to 317,244.48, 437,800.78 and 172,050.54 is: 237,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,244.48 : 437,800.78 = 172,050.54 : x
  2. Step 2: Convert to fraction form
    317,244.48/437,800.78 = 172,050.54/x
  3. Step 3: Cross multiply
    317,244.48x = 437,800.78 × 172,050.54
  4. Step 4: Simplify right side
    317,244.48x = 75,323,860,611.42
  5. Step 5: Solve for x
    x = 75,323,860,611.42/317,244.48
  6. Step 6: Final answer
    x = 237,431.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.