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Finding the Fourth Proportional to 266,485.01, 367,754.12 and 145,631.39

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Solution

The fourth proportional to 266,485.01, 367,754.12 and 145,631.39 is: 200,973.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,485.01 : 367,754.12 = 145,631.39 : x
  2. Step 2: Convert to fraction form
    266,485.01/367,754.12 = 145,631.39/x
  3. Step 3: Cross multiply
    266,485.01x = 367,754.12 × 145,631.39
  4. Step 4: Simplify right side
    266,485.01x = 53,556,541,106.90
  5. Step 5: Solve for x
    x = 53,556,541,106.90/266,485.01
  6. Step 6: Final answer
    x = 200,973.94

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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.