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Finding the Fourth Proportional to 329,646.51, 494,465.99 and 80,328.51

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Solution

The fourth proportional to 329,646.51, 494,465.99 and 80,328.51 is: 120,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,646.51 : 494,465.99 = 80,328.51 : x
  2. Step 2: Convert to fraction form
    329,646.51/494,465.99 = 80,328.51/x
  3. Step 3: Cross multiply
    329,646.51x = 494,465.99 × 80,328.51
  4. Step 4: Simplify right side
    329,646.51x = 39,719,715,820.73
  5. Step 5: Solve for x
    x = 39,719,715,820.73/329,646.51
  6. Step 6: Final answer
    x = 120,491.84

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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.