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Finding the Fourth Proportional to 328,087.60, 491,742.60 and 170,234.80

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Solution

The fourth proportional to 328,087.60, 491,742.60 and 170,234.80 is: 255,150.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,087.60 : 491,742.60 = 170,234.80 : x
  2. Step 2: Convert to fraction form
    328,087.60/491,742.60 = 170,234.80/x
  3. Step 3: Cross multiply
    328,087.60x = 491,742.60 × 170,234.80
  4. Step 4: Simplify right side
    328,087.60x = 83,711,703,162.48
  5. Step 5: Solve for x
    x = 83,711,703,162.48/328,087.60
  6. Step 6: Final answer
    x = 255,150.46

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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.