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Finding the Fourth Proportional to 201,015.65, 301,459.49 and 66,048.39

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Solution

The fourth proportional to 201,015.65, 301,459.49 and 66,048.39 is: 99,051.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,015.65 : 301,459.49 = 66,048.39 : x
  2. Step 2: Convert to fraction form
    201,015.65/301,459.49 = 66,048.39/x
  3. Step 3: Cross multiply
    201,015.65x = 301,459.49 × 66,048.39
  4. Step 4: Simplify right side
    201,015.65x = 19,910,913,882.16
  5. Step 5: Solve for x
    x = 19,910,913,882.16/201,015.65
  6. Step 6: Final answer
    x = 99,051.56

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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.