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Finding the Fourth Proportional to 355,576.40, 533,364.60 and 328,542.80

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Solution

The fourth proportional to 355,576.40, 533,364.60 and 328,542.80 is: 492,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,576.40 : 533,364.60 = 328,542.80 : x
  2. Step 2: Convert to fraction form
    355,576.40/533,364.60 = 328,542.80/x
  3. Step 3: Cross multiply
    355,576.40x = 533,364.60 × 328,542.80
  4. Step 4: Simplify right side
    355,576.40x = 175,233,099,104.88
  5. Step 5: Solve for x
    x = 175,233,099,104.88/355,576.40
  6. Step 6: Final answer
    x = 492,814.20

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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.