Home / 306,111.48-422,431.08-170,141.94

Finding the Fourth Proportional to 306,111.48, 422,431.08 and 170,141.94

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Solution

The fourth proportional to 306,111.48, 422,431.08 and 170,141.94 is: 234,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,111.48 : 422,431.08 = 170,141.94 : x
  2. Step 2: Convert to fraction form
    306,111.48/422,431.08 = 170,141.94/x
  3. Step 3: Cross multiply
    306,111.48x = 422,431.08 × 170,141.94
  4. Step 4: Simplify right side
    306,111.48x = 71,873,243,467.50
  5. Step 5: Solve for x
    x = 71,873,243,467.50/306,111.48
  6. Step 6: Final answer
    x = 234,794.34

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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.