Home / 656,097.20-984,145.80-212,865.20

Finding the Fourth Proportional to 656,097.20, 984,145.80 and 212,865.20

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Solution

The fourth proportional to 656,097.20, 984,145.80 and 212,865.20 is: 319,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,097.20 : 984,145.80 = 212,865.20 : x
  2. Step 2: Convert to fraction form
    656,097.20/984,145.80 = 212,865.20/x
  3. Step 3: Cross multiply
    656,097.20x = 984,145.80 × 212,865.20
  4. Step 4: Simplify right side
    656,097.20x = 209,490,392,546.16
  5. Step 5: Solve for x
    x = 209,490,392,546.16/656,097.20
  6. Step 6: Final answer
    x = 319,297.80

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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.