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Finding the Fourth Proportional to 366,940.30, 550,410.45 and 130,306.90

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Solution

The fourth proportional to 366,940.30, 550,410.45 and 130,306.90 is: 195,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.30 : 550,410.45 = 130,306.90 : x
  2. Step 2: Convert to fraction form
    366,940.30/550,410.45 = 130,306.90/x
  3. Step 3: Cross multiply
    366,940.30x = 550,410.45 × 130,306.90
  4. Step 4: Simplify right side
    366,940.30x = 71,722,279,467.11
  5. Step 5: Solve for x
    x = 71,722,279,467.11/366,940.30
  6. Step 6: Final answer
    x = 195,460.35

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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.