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Finding the Fourth Proportional to 208,800.10, 313,200.15 and 208,800.10

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Solution

The fourth proportional to 208,800.10, 313,200.15 and 208,800.10 is: 313,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,800.10 : 313,200.15 = 208,800.10 : x
  2. Step 2: Convert to fraction form
    208,800.10/313,200.15 = 208,800.10/x
  3. Step 3: Cross multiply
    208,800.10x = 313,200.15 × 208,800.10
  4. Step 4: Simplify right side
    208,800.10x = 65,396,222,640.02
  5. Step 5: Solve for x
    x = 65,396,222,640.02/208,800.10
  6. Step 6: Final answer
    x = 313,200.15

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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.