Home / 631,161.60-946,747.20-210,436.80

Finding the Fourth Proportional to 631,161.60, 946,747.20 and 210,436.80

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Solution

The fourth proportional to 631,161.60, 946,747.20 and 210,436.80 is: 315,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,161.60 : 946,747.20 = 210,436.80 : x
  2. Step 2: Convert to fraction form
    631,161.60/946,747.20 = 210,436.80/x
  3. Step 3: Cross multiply
    631,161.60x = 946,747.20 × 210,436.80
  4. Step 4: Simplify right side
    631,161.60x = 199,230,451,176.96
  5. Step 5: Solve for x
    x = 199,230,451,176.96/631,161.60
  6. Step 6: Final answer
    x = 315,656.80

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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.