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Finding the Fourth Proportional to 398,757.60, 597,963.60 and 162,021.60

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Solution

The fourth proportional to 398,757.60, 597,963.60 and 162,021.60 is: 242,962.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,757.60 : 597,963.60 = 162,021.60 : x
  2. Step 2: Convert to fraction form
    398,757.60/597,963.60 = 162,021.60/x
  3. Step 3: Cross multiply
    398,757.60x = 597,963.60 × 162,021.60
  4. Step 4: Simplify right side
    398,757.60x = 96,883,019,213.76
  5. Step 5: Solve for x
    x = 96,883,019,213.76/398,757.60
  6. Step 6: Final answer
    x = 242,962.19

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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.