Home / 306,228.31-422,609.13-170,276.22

Finding the Fourth Proportional to 306,228.31, 422,609.13 and 170,276.22

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Solution

The fourth proportional to 306,228.31, 422,609.13 and 170,276.22 is: 234,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,228.31 : 422,609.13 = 170,276.22 : x
  2. Step 2: Convert to fraction form
    306,228.31/422,609.13 = 170,276.22/x
  3. Step 3: Cross multiply
    306,228.31x = 422,609.13 × 170,276.22
  4. Step 4: Simplify right side
    306,228.31x = 71,960,285,193.89
  5. Step 5: Solve for x
    x = 71,960,285,193.89/306,228.31
  6. Step 6: Final answer
    x = 234,989.00

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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.