Home / 330,845.37-496,000.74-128,336.91

Finding the Fourth Proportional to 330,845.37, 496,000.74 and 128,336.91

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Solution

The fourth proportional to 330,845.37, 496,000.74 and 128,336.91 is: 192,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,845.37 : 496,000.74 = 128,336.91 : x
  2. Step 2: Convert to fraction form
    330,845.37/496,000.74 = 128,336.91/x
  3. Step 3: Cross multiply
    330,845.37x = 496,000.74 × 128,336.91
  4. Step 4: Simplify right side
    330,845.37x = 63,655,203,379.63
  5. Step 5: Solve for x
    x = 63,655,203,379.63/330,845.37
  6. Step 6: Final answer
    x = 192,401.67

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1.5x scale

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.