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Finding the Fourth Proportional to 329,080.21, 493,620.32 and 79,762.21

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Solution

The fourth proportional to 329,080.21, 493,620.32 and 79,762.21 is: 119,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,080.21 : 493,620.32 = 79,762.21 : x
  2. Step 2: Convert to fraction form
    329,080.21/493,620.32 = 79,762.21/x
  3. Step 3: Cross multiply
    329,080.21x = 493,620.32 × 79,762.21
  4. Step 4: Simplify right side
    329,080.21x = 39,372,247,624.11
  5. Step 5: Solve for x
    x = 39,372,247,624.11/329,080.21
  6. Step 6: Final answer
    x = 119,643.32

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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.