Home / 306,025.05-422,287.70-170,050.39

Finding the Fourth Proportional to 306,025.05, 422,287.70 and 170,050.39

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Solution

The fourth proportional to 306,025.05, 422,287.70 and 170,050.39 is: 234,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,025.05 : 422,287.70 = 170,050.39 : x
  2. Step 2: Convert to fraction form
    306,025.05/422,287.70 = 170,050.39/x
  3. Step 3: Cross multiply
    306,025.05x = 422,287.70 × 170,050.39
  4. Step 4: Simplify right side
    306,025.05x = 71,810,186,171.23
  5. Step 5: Solve for x
    x = 71,810,186,171.23/306,025.05
  6. Step 6: Final answer
    x = 234,654.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.