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Finding the Fourth Proportional to 631,171.62, 946,765.80 and 210,447.63

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Solution

The fourth proportional to 631,171.62, 946,765.80 and 210,447.63 is: 315,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,171.62 : 946,765.80 = 210,447.63 : x
  2. Step 2: Convert to fraction form
    631,171.62/946,765.80 = 210,447.63/x
  3. Step 3: Cross multiply
    631,171.62x = 946,765.80 × 210,447.63
  4. Step 4: Simplify right side
    631,171.62x = 199,244,618,775.05
  5. Step 5: Solve for x
    x = 199,244,618,775.05/631,171.62
  6. Step 6: Final answer
    x = 315,674.24

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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.