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Finding the Fourth Proportional to 201,459.35, 302,180.93 and 68,339.90

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Solution

The fourth proportional to 201,459.35, 302,180.93 and 68,339.90 is: 102,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,459.35 : 302,180.93 = 68,339.90 : x
  2. Step 2: Convert to fraction form
    201,459.35/302,180.93 = 68,339.90/x
  3. Step 3: Cross multiply
    201,459.35x = 302,180.93 × 68,339.90
  4. Step 4: Simplify right side
    201,459.35x = 20,651,015,208.13
  5. Step 5: Solve for x
    x = 20,651,015,208.13/201,459.35
  6. Step 6: Final answer
    x = 102,507.11

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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.