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Finding the Fourth Proportional to 276,634.30, 415,000.05 and 99,244.30

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Solution

The fourth proportional to 276,634.30, 415,000.05 and 99,244.30 is: 148,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,634.30 : 415,000.05 = 99,244.30 : x
  2. Step 2: Convert to fraction form
    276,634.30/415,000.05 = 99,244.30/x
  3. Step 3: Cross multiply
    276,634.30x = 415,000.05 × 99,244.30
  4. Step 4: Simplify right side
    276,634.30x = 41,186,389,462.22
  5. Step 5: Solve for x
    x = 41,186,389,462.22/276,634.30
  6. Step 6: Final answer
    x = 148,883.89

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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.