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Finding the Fourth Proportional to 201,311.30, 302,550.15 and 197,812.10

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Solution

The fourth proportional to 201,311.30, 302,550.15 and 197,812.10 is: 297,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,311.30 : 302,550.15 = 197,812.10 : x
  2. Step 2: Convert to fraction form
    201,311.30/302,550.15 = 197,812.10/x
  3. Step 3: Cross multiply
    201,311.30x = 302,550.15 × 197,812.10
  4. Step 4: Simplify right side
    201,311.30x = 59,848,080,526.82
  5. Step 5: Solve for x
    x = 59,848,080,526.82/201,311.30
  6. Step 6: Final answer
    x = 297,291.21

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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.