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Finding the Fourth Proportional to 200,536.55, 300,813.83 and 65,608.30

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Solution

The fourth proportional to 200,536.55, 300,813.83 and 65,608.30 is: 98,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,536.55 : 300,813.83 = 65,608.30 : x
  2. Step 2: Convert to fraction form
    200,536.55/300,813.83 = 65,608.30/x
  3. Step 3: Cross multiply
    200,536.55x = 300,813.83 × 65,608.30
  4. Step 4: Simplify right side
    200,536.55x = 19,735,884,002.79
  5. Step 5: Solve for x
    x = 19,735,884,002.79/200,536.55
  6. Step 6: Final answer
    x = 98,415.40

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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.