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Finding the Fourth Proportional to 318,379, 439,334.22 and 175,145.08

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Solution

The fourth proportional to 318,379, 439,334.22 and 175,145.08 is: 241,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,379 : 439,334.22 = 175,145.08 : x
  2. Step 2: Convert to fraction form
    318,379/439,334.22 = 175,145.08/x
  3. Step 3: Cross multiply
    318,379x = 439,334.22 × 175,145.08
  4. Step 4: Simplify right side
    318,379x = 76,947,227,108.64
  5. Step 5: Solve for x
    x = 76,947,227,108.64/318,379
  6. Step 6: Final answer
    x = 241,684.37

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1.5x scale

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.