Home / 315,331.40-472,997.10-197,136.20

Finding the Fourth Proportional to 315,331.40, 472,997.10 and 197,136.20

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Solution

The fourth proportional to 315,331.40, 472,997.10 and 197,136.20 is: 295,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,331.40 : 472,997.10 = 197,136.20 : x
  2. Step 2: Convert to fraction form
    315,331.40/472,997.10 = 197,136.20/x
  3. Step 3: Cross multiply
    315,331.40x = 472,997.10 × 197,136.20
  4. Step 4: Simplify right side
    315,331.40x = 93,244,850,905.02
  5. Step 5: Solve for x
    x = 93,244,850,905.02/315,331.40
  6. Step 6: Final answer
    x = 295,704.30

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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.