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Finding the Fourth Proportional to 208,990.62, 288,495.36 and 141,099.57

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Solution

The fourth proportional to 208,990.62, 288,495.36 and 141,099.57 is: 194,777.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,990.62 : 288,495.36 = 141,099.57 : x
  2. Step 2: Convert to fraction form
    208,990.62/288,495.36 = 141,099.57/x
  3. Step 3: Cross multiply
    208,990.62x = 288,495.36 × 141,099.57
  4. Step 4: Simplify right side
    208,990.62x = 40,706,571,243.00
  5. Step 5: Solve for x
    x = 40,706,571,243.00/208,990.62
  6. Step 6: Final answer
    x = 194,777.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.