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Finding the Fourth Proportional to 200,396.77, 300,607.50 and 88,129.86

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Solution

The fourth proportional to 200,396.77, 300,607.50 and 88,129.86 is: 132,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,396.77 : 300,607.50 = 88,129.86 : x
  2. Step 2: Convert to fraction form
    200,396.77/300,607.50 = 88,129.86/x
  3. Step 3: Cross multiply
    200,396.77x = 300,607.50 × 88,129.86
  4. Step 4: Simplify right side
    200,396.77x = 26,492,496,093.16
  5. Step 5: Solve for x
    x = 26,492,496,093.16/200,396.77
  6. Step 6: Final answer
    x = 132,200.22

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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.