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Finding the Fourth Proportional to 519,735, 717,234.30 and 281,271

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Solution

The fourth proportional to 519,735, 717,234.30 and 281,271 is: 388,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,735 : 717,234.30 = 281,271 : x
  2. Step 2: Convert to fraction form
    519,735/717,234.30 = 281,271/x
  3. Step 3: Cross multiply
    519,735x = 717,234.30 × 281,271
  4. Step 4: Simplify right side
    519,735x = 201,737,208,795.30
  5. Step 5: Solve for x
    x = 201,737,208,795.30/519,735
  6. Step 6: Final answer
    x = 388,153.98

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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.