Home / 340,912.72-470,355.30-197,644.18

Finding the Fourth Proportional to 340,912.72, 470,355.30 and 197,644.18

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Solution

The fourth proportional to 340,912.72, 470,355.30 and 197,644.18 is: 272,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,912.72 : 470,355.30 = 197,644.18 : x
  2. Step 2: Convert to fraction form
    340,912.72/470,355.30 = 197,644.18/x
  3. Step 3: Cross multiply
    340,912.72x = 470,355.30 × 197,644.18
  4. Step 4: Simplify right side
    340,912.72x = 92,962,987,577.15
  5. Step 5: Solve for x
    x = 92,962,987,577.15/340,912.72
  6. Step 6: Final answer
    x = 272,688.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.