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Finding the Fourth Proportional to 245,890.20, 368,543.70 and 220,812.60

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Solution

The fourth proportional to 245,890.20, 368,543.70 and 220,812.60 is: 330,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,890.20 : 368,543.70 = 220,812.60 : x
  2. Step 2: Convert to fraction form
    245,890.20/368,543.70 = 220,812.60/x
  3. Step 3: Cross multiply
    245,890.20x = 368,543.70 × 220,812.60
  4. Step 4: Simplify right side
    245,890.20x = 81,379,092,610.62
  5. Step 5: Solve for x
    x = 81,379,092,610.62/245,890.20
  6. Step 6: Final answer
    x = 330,957.04

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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.