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Finding the Fourth Proportional to 378,252.08, 521,270.02 and 270,634.67

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Solution

The fourth proportional to 378,252.08, 521,270.02 and 270,634.67 is: 372,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,252.08 : 521,270.02 = 270,634.67 : x
  2. Step 2: Convert to fraction form
    378,252.08/521,270.02 = 270,634.67/x
  3. Step 3: Cross multiply
    378,252.08x = 521,270.02 × 270,634.67
  4. Step 4: Simplify right side
    378,252.08x = 141,073,735,884.07
  5. Step 5: Solve for x
    x = 141,073,735,884.07/378,252.08
  6. Step 6: Final answer
    x = 372,962.23

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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.