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Finding the Fourth Proportional to 216,179.86, 324,396.15 and 156,149.14

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Solution

The fourth proportional to 216,179.86, 324,396.15 and 156,149.14 is: 234,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,179.86 : 324,396.15 = 156,149.14 : x
  2. Step 2: Convert to fraction form
    216,179.86/324,396.15 = 156,149.14/x
  3. Step 3: Cross multiply
    216,179.86x = 324,396.15 × 156,149.14
  4. Step 4: Simplify right side
    216,179.86x = 50,654,179,841.81
  5. Step 5: Solve for x
    x = 50,654,179,841.81/216,179.86
  6. Step 6: Final answer
    x = 234,314.98

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1.5x scale

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.