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Finding the Fourth Proportional to 372,606, 514,196.28 and 202,830

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Solution

The fourth proportional to 372,606, 514,196.28 and 202,830 is: 279,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,606 : 514,196.28 = 202,830 : x
  2. Step 2: Convert to fraction form
    372,606/514,196.28 = 202,830/x
  3. Step 3: Cross multiply
    372,606x = 514,196.28 × 202,830
  4. Step 4: Simplify right side
    372,606x = 104,294,431,472.40
  5. Step 5: Solve for x
    x = 104,294,431,472.40/372,606
  6. Step 6: Final answer
    x = 279,905.40

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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.