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Finding the Fourth Proportional to 330,148.90, 495,223.35 and 196,960.60

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Solution

The fourth proportional to 330,148.90, 495,223.35 and 196,960.60 is: 295,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,148.90 : 495,223.35 = 196,960.60 : x
  2. Step 2: Convert to fraction form
    330,148.90/495,223.35 = 196,960.60/x
  3. Step 3: Cross multiply
    330,148.90x = 495,223.35 × 196,960.60
  4. Step 4: Simplify right side
    330,148.90x = 97,539,488,150.01
  5. Step 5: Solve for x
    x = 97,539,488,150.01/330,148.90
  6. Step 6: Final answer
    x = 295,440.90

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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.