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Finding the Fourth Proportional to 307,393, 424,205.58 and 173,257

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Solution

The fourth proportional to 307,393, 424,205.58 and 173,257 is: 239,096.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,393 : 424,205.58 = 173,257 : x
  2. Step 2: Convert to fraction form
    307,393/424,205.58 = 173,257/x
  3. Step 3: Cross multiply
    307,393x = 424,205.58 × 173,257
  4. Step 4: Simplify right side
    307,393x = 73,496,586,174.06
  5. Step 5: Solve for x
    x = 73,496,586,174.06/307,393
  6. Step 6: Final answer
    x = 239,096.49

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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.