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Finding the Fourth Proportional to 330,315.88, 495,471.08 and 196,308.67

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Solution

The fourth proportional to 330,315.88, 495,471.08 and 196,308.67 is: 294,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,315.88 : 495,471.08 = 196,308.67 : x
  2. Step 2: Convert to fraction form
    330,315.88/495,471.08 = 196,308.67/x
  3. Step 3: Cross multiply
    330,315.88x = 495,471.08 × 196,308.67
  4. Step 4: Simplify right side
    330,315.88x = 97,265,267,990.36
  5. Step 5: Solve for x
    x = 97,265,267,990.36/330,315.88
  6. Step 6: Final answer
    x = 294,461.38

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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.