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Finding the Fourth Proportional to 201,315.03, 301,784.82 and 68,102.60

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Solution

The fourth proportional to 201,315.03, 301,784.82 and 68,102.60 is: 102,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,315.03 : 301,784.82 = 68,102.60 : x
  2. Step 2: Convert to fraction form
    201,315.03/301,784.82 = 68,102.60/x
  3. Step 3: Cross multiply
    201,315.03x = 301,784.82 × 68,102.60
  4. Step 4: Simplify right side
    201,315.03x = 20,552,329,373.61
  5. Step 5: Solve for x
    x = 20,552,329,373.61/201,315.03
  6. Step 6: Final answer
    x = 102,090.39

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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.