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Finding the Fourth Proportional to 306,622.80, 459,059.40 and 188,524.80

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Solution

The fourth proportional to 306,622.80, 459,059.40 and 188,524.80 is: 282,249.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,622.80 : 459,059.40 = 188,524.80 : x
  2. Step 2: Convert to fraction form
    306,622.80/459,059.40 = 188,524.80/x
  3. Step 3: Cross multiply
    306,622.80x = 459,059.40 × 188,524.80
  4. Step 4: Simplify right side
    306,622.80x = 86,544,081,573.12
  5. Step 5: Solve for x
    x = 86,544,081,573.12/306,622.80
  6. Step 6: Final answer
    x = 282,249.34

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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.