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Finding the Fourth Proportional to 443,102.00, 611,271.36 and 261,692.78

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Solution

The fourth proportional to 443,102.00, 611,271.36 and 261,692.78 is: 361,012.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,102.00 : 611,271.36 = 261,692.78 : x
  2. Step 2: Convert to fraction form
    443,102.00/611,271.36 = 261,692.78/x
  3. Step 3: Cross multiply
    443,102.00x = 611,271.36 × 261,692.78
  4. Step 4: Simplify right side
    443,102.00x = 159,965,298,476.42
  5. Step 5: Solve for x
    x = 159,965,298,476.42/443,102.00
  6. Step 6: Final answer
    x = 361,012.36

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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.