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Finding the Fourth Proportional to 328,059.60, 491,700.60 and 170,206.80

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Solution

The fourth proportional to 328,059.60, 491,700.60 and 170,206.80 is: 255,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,059.60 : 491,700.60 = 170,206.80 : x
  2. Step 2: Convert to fraction form
    328,059.60/491,700.60 = 170,206.80/x
  3. Step 3: Cross multiply
    328,059.60x = 491,700.60 × 170,206.80
  4. Step 4: Simplify right side
    328,059.60x = 83,690,785,684.08
  5. Step 5: Solve for x
    x = 83,690,785,684.08/328,059.60
  6. Step 6: Final answer
    x = 255,108.48

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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.