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Finding the Fourth Proportional to 424,695.54, 637,038.45 and 171,907.23

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Solution

The fourth proportional to 424,695.54, 637,038.45 and 171,907.23 is: 257,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,695.54 : 637,038.45 = 171,907.23 : x
  2. Step 2: Convert to fraction form
    424,695.54/637,038.45 = 171,907.23/x
  3. Step 3: Cross multiply
    424,695.54x = 637,038.45 × 171,907.23
  4. Step 4: Simplify right side
    424,695.54x = 109,511,515,342.99
  5. Step 5: Solve for x
    x = 109,511,515,342.99/424,695.54
  6. Step 6: Final answer
    x = 257,858.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.