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Finding the Fourth Proportional to 289,155.20, 433,149.60 and 164,350.40

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Solution

The fourth proportional to 289,155.20, 433,149.60 and 164,350.40 is: 246,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,155.20 : 433,149.60 = 164,350.40 : x
  2. Step 2: Convert to fraction form
    289,155.20/433,149.60 = 164,350.40/x
  3. Step 3: Cross multiply
    289,155.20x = 433,149.60 × 164,350.40
  4. Step 4: Simplify right side
    289,155.20x = 71,188,310,019.84
  5. Step 5: Solve for x
    x = 71,188,310,019.84/289,155.20
  6. Step 6: Final answer
    x = 246,194.12

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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.