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Finding the Fourth Proportional to 307,352.52, 423,908.01 and 272,933.46

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Solution

The fourth proportional to 307,352.52, 423,908.01 and 272,933.46 is: 376,436.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,352.52 : 423,908.01 = 272,933.46 : x
  2. Step 2: Convert to fraction form
    307,352.52/423,908.01 = 272,933.46/x
  3. Step 3: Cross multiply
    307,352.52x = 423,908.01 × 272,933.46
  4. Step 4: Simplify right side
    307,352.52x = 115,698,679,891.02
  5. Step 5: Solve for x
    x = 115,698,679,891.02/307,352.52
  6. Step 6: Final answer
    x = 376,436.41

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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.