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Finding the Fourth Proportional to 358,086.40, 536,481.60 and 170,684.80

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Solution

The fourth proportional to 358,086.40, 536,481.60 and 170,684.80 is: 255,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.40 : 536,481.60 = 170,684.80 : x
  2. Step 2: Convert to fraction form
    358,086.40/536,481.60 = 170,684.80/x
  3. Step 3: Cross multiply
    358,086.40x = 536,481.60 × 170,684.80
  4. Step 4: Simplify right side
    358,086.40x = 91,569,254,599.68
  5. Step 5: Solve for x
    x = 91,569,254,599.68/358,086.40
  6. Step 6: Final answer
    x = 255,718.33

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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.