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Finding the Fourth Proportional to 201,188.68, 301,819.68 and 66,260.10

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Solution

The fourth proportional to 201,188.68, 301,819.68 and 66,260.10 is: 99,402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,188.68 : 301,819.68 = 66,260.10 : x
  2. Step 2: Convert to fraction form
    201,188.68/301,819.68 = 66,260.10/x
  3. Step 3: Cross multiply
    201,188.68x = 301,819.68 × 66,260.10
  4. Step 4: Simplify right side
    201,188.68x = 19,998,602,178.77
  5. Step 5: Solve for x
    x = 19,998,602,178.77/201,188.68
  6. Step 6: Final answer
    x = 99,402.22

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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.