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Finding the Fourth Proportional to 307,952.30, 431,755.30 and 307,952.30

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Solution

The fourth proportional to 307,952.30, 431,755.30 and 307,952.30 is: 431,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,952.30 : 431,755.30 = 307,952.30 : x
  2. Step 2: Convert to fraction form
    307,952.30/431,755.30 = 307,952.30/x
  3. Step 3: Cross multiply
    307,952.30x = 431,755.30 × 307,952.30
  4. Step 4: Simplify right side
    307,952.30x = 132,960,037,672.19
  5. Step 5: Solve for x
    x = 132,960,037,672.19/307,952.30
  6. Step 6: Final answer
    x = 431,755.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.