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Finding the Fourth Proportional to 315,261.60, 472,892.40 and 197,163.60

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Solution

The fourth proportional to 315,261.60, 472,892.40 and 197,163.60 is: 295,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,261.60 : 472,892.40 = 197,163.60 : x
  2. Step 2: Convert to fraction form
    315,261.60/472,892.40 = 197,163.60/x
  3. Step 3: Cross multiply
    315,261.60x = 472,892.40 × 197,163.60
  4. Step 4: Simplify right side
    315,261.60x = 93,237,167,996.64
  5. Step 5: Solve for x
    x = 93,237,167,996.64/315,261.60
  6. Step 6: Final answer
    x = 295,745.40

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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.