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Finding the Fourth Proportional to 318,240.99, 439,175.67 and 175,002

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Solution

The fourth proportional to 318,240.99, 439,175.67 and 175,002 is: 241,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,240.99 : 439,175.67 = 175,002 : x
  2. Step 2: Convert to fraction form
    318,240.99/439,175.67 = 175,002/x
  3. Step 3: Cross multiply
    318,240.99x = 439,175.67 × 175,002
  4. Step 4: Simplify right side
    318,240.99x = 76,856,620,601.34
  5. Step 5: Solve for x
    x = 76,856,620,601.34/318,240.99
  6. Step 6: Final answer
    x = 241,504.47

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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.