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Finding the Fourth Proportional to 201,212.55, 301,818.83 and 198,260.10

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Solution

The fourth proportional to 201,212.55, 301,818.83 and 198,260.10 is: 297,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,212.55 : 301,818.83 = 198,260.10 : x
  2. Step 2: Convert to fraction form
    201,212.55/301,818.83 = 198,260.10/x
  3. Step 3: Cross multiply
    201,212.55x = 301,818.83 × 198,260.10
  4. Step 4: Simplify right side
    201,212.55x = 59,838,630,426.38
  5. Step 5: Solve for x
    x = 59,838,630,426.38/201,212.55
  6. Step 6: Final answer
    x = 297,390.15

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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.