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Finding the Fourth Proportional to 330,290.91, 495,378.05 and 130,544.91

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Solution

The fourth proportional to 330,290.91, 495,378.05 and 130,544.91 is: 195,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,290.91 : 495,378.05 = 130,544.91 : x
  2. Step 2: Convert to fraction form
    330,290.91/495,378.05 = 130,544.91/x
  3. Step 3: Cross multiply
    330,290.91x = 495,378.05 × 130,544.91
  4. Step 4: Simplify right side
    330,290.91x = 64,669,082,300.50
  5. Step 5: Solve for x
    x = 64,669,082,300.50/330,290.91
  6. Step 6: Final answer
    x = 195,794.31

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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.