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Finding the Fourth Proportional to 200,266.02, 300,398.27 and 81,937.32

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Solution

The fourth proportional to 200,266.02, 300,398.27 and 81,937.32 is: 122,905.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,266.02 : 300,398.27 = 81,937.32 : x
  2. Step 2: Convert to fraction form
    200,266.02/300,398.27 = 81,937.32/x
  3. Step 3: Cross multiply
    200,266.02x = 300,398.27 × 81,937.32
  4. Step 4: Simplify right side
    200,266.02x = 24,613,829,790.89
  5. Step 5: Solve for x
    x = 24,613,829,790.89/200,266.02
  6. Step 6: Final answer
    x = 122,905.67

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1.5x scale

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.