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Finding the Fourth Proportional to 363,901.20, 545,851.80 and 330,658.80

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Solution

The fourth proportional to 363,901.20, 545,851.80 and 330,658.80 is: 495,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,901.20 : 545,851.80 = 330,658.80 : x
  2. Step 2: Convert to fraction form
    363,901.20/545,851.80 = 330,658.80/x
  3. Step 3: Cross multiply
    363,901.20x = 545,851.80 × 330,658.80
  4. Step 4: Simplify right side
    363,901.20x = 180,490,701,165.84
  5. Step 5: Solve for x
    x = 180,490,701,165.84/363,901.20
  6. Step 6: Final answer
    x = 495,988.20

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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.