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Finding the Fourth Proportional to 463,700, 639,912.48 and 270,102.68

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Solution

The fourth proportional to 463,700, 639,912.48 and 270,102.68 is: 372,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,700 : 639,912.48 = 270,102.68 : x
  2. Step 2: Convert to fraction form
    463,700/639,912.48 = 270,102.68/x
  3. Step 3: Cross multiply
    463,700x = 639,912.48 × 270,102.68
  4. Step 4: Simplify right side
    463,700x = 172,842,075,813.45
  5. Step 5: Solve for x
    x = 172,842,075,813.45/463,700
  6. Step 6: Final answer
    x = 372,745.47

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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.