Home / 306,190.02-422,518.31-170,215.70

Finding the Fourth Proportional to 306,190.02, 422,518.31 and 170,215.70

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Solution

The fourth proportional to 306,190.02, 422,518.31 and 170,215.70 is: 234,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,190.02 : 422,518.31 = 170,215.70 : x
  2. Step 2: Convert to fraction form
    306,190.02/422,518.31 = 170,215.70/x
  3. Step 3: Cross multiply
    306,190.02x = 422,518.31 × 170,215.70
  4. Step 4: Simplify right side
    306,190.02x = 71,919,247,574.11
  5. Step 5: Solve for x
    x = 71,919,247,574.11/306,190.02
  6. Step 6: Final answer
    x = 234,884.36

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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.