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Finding the Fourth Proportional to 382,209.20, 573,313.80 and 340,874.90

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Solution

The fourth proportional to 382,209.20, 573,313.80 and 340,874.90 is: 511,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,209.20 : 573,313.80 = 340,874.90 : x
  2. Step 2: Convert to fraction form
    382,209.20/573,313.80 = 340,874.90/x
  3. Step 3: Cross multiply
    382,209.20x = 573,313.80 × 340,874.90
  4. Step 4: Simplify right side
    382,209.20x = 195,428,284,243.62
  5. Step 5: Solve for x
    x = 195,428,284,243.62/382,209.20
  6. Step 6: Final answer
    x = 511,312.35

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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.