Home / 330,022.98-495,030.26-105,380.54

Finding the Fourth Proportional to 330,022.98, 495,030.26 and 105,380.54

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Solution

The fourth proportional to 330,022.98, 495,030.26 and 105,380.54 is: 158,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.98 : 495,030.26 = 105,380.54 : x
  2. Step 2: Convert to fraction form
    330,022.98/495,030.26 = 105,380.54/x
  3. Step 3: Cross multiply
    330,022.98x = 495,030.26 × 105,380.54
  4. Step 4: Simplify right side
    330,022.98x = 52,166,556,115.14
  5. Step 5: Solve for x
    x = 52,166,556,115.14/330,022.98
  6. Step 6: Final answer
    x = 158,069.47

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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.