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Finding the Fourth Proportional to 324,851.20, 487,737.60 and 200,435.20

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Solution

The fourth proportional to 324,851.20, 487,737.60 and 200,435.20 is: 300,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,851.20 : 487,737.60 = 200,435.20 : x
  2. Step 2: Convert to fraction form
    324,851.20/487,737.60 = 200,435.20/x
  3. Step 3: Cross multiply
    324,851.20x = 487,737.60 × 200,435.20
  4. Step 4: Simplify right side
    324,851.20x = 97,759,783,403.52
  5. Step 5: Solve for x
    x = 97,759,783,403.52/324,851.20
  6. Step 6: Final answer
    x = 300,937.12

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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.