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Finding the Fourth Proportional to 330,360.91, 495,512.21 and 120,000.67

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Solution

The fourth proportional to 330,360.91, 495,512.21 and 120,000.67 is: 179,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,360.91 : 495,512.21 = 120,000.67 : x
  2. Step 2: Convert to fraction form
    330,360.91/495,512.21 = 120,000.67/x
  3. Step 3: Cross multiply
    330,360.91x = 495,512.21 × 120,000.67
  4. Step 4: Simplify right side
    330,360.91x = 59,461,797,193.18
  5. Step 5: Solve for x
    x = 59,461,797,193.18/330,360.91
  6. Step 6: Final answer
    x = 179,990.41

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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.