Home / 318,400.32-439,375.10-175,137.24

Finding the Fourth Proportional to 318,400.32, 439,375.10 and 175,137.24

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Solution

The fourth proportional to 318,400.32, 439,375.10 and 175,137.24 is: 241,679.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,400.32 : 439,375.10 = 175,137.24 : x
  2. Step 2: Convert to fraction form
    318,400.32/439,375.10 = 175,137.24/x
  3. Step 3: Cross multiply
    318,400.32x = 439,375.10 × 175,137.24
  4. Step 4: Simplify right side
    318,400.32x = 76,950,942,338.72
  5. Step 5: Solve for x
    x = 76,950,942,338.72/318,400.32
  6. Step 6: Final answer
    x = 241,679.85

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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.