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Finding the Fourth Proportional to 342,226.80, 513,340.20 and 329,785.20

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Solution

The fourth proportional to 342,226.80, 513,340.20 and 329,785.20 is: 494,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,226.80 : 513,340.20 = 329,785.20 : x
  2. Step 2: Convert to fraction form
    342,226.80/513,340.20 = 329,785.20/x
  3. Step 3: Cross multiply
    342,226.80x = 513,340.20 × 329,785.20
  4. Step 4: Simplify right side
    342,226.80x = 169,292,000,525.04
  5. Step 5: Solve for x
    x = 169,292,000,525.04/342,226.80
  6. Step 6: Final answer
    x = 494,677.80

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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.