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Finding the Fourth Proportional to 330,672.90, 495,615.57 and 230,289.60

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Solution

The fourth proportional to 330,672.90, 495,615.57 and 230,289.60 is: 345,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,672.90 : 495,615.57 = 230,289.60 : x
  2. Step 2: Convert to fraction form
    330,672.90/495,615.57 = 230,289.60/x
  3. Step 3: Cross multiply
    330,672.90x = 495,615.57 × 230,289.60
  4. Step 4: Simplify right side
    330,672.90x = 114,135,111,369.07
  5. Step 5: Solve for x
    x = 114,135,111,369.07/330,672.90
  6. Step 6: Final answer
    x = 345,160.16

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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.