Home / 210,211.49-290,016-161,828.24

Finding the Fourth Proportional to 210,211.49, 290,016 and 161,828.24

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Solution

The fourth proportional to 210,211.49, 290,016 and 161,828.24 is: 223,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,211.49 : 290,016 = 161,828.24 : x
  2. Step 2: Convert to fraction form
    210,211.49/290,016 = 161,828.24/x
  3. Step 3: Cross multiply
    210,211.49x = 290,016 × 161,828.24
  4. Step 4: Simplify right side
    210,211.49x = 46,932,777,401.76
  5. Step 5: Solve for x
    x = 46,932,777,401.76/210,211.49
  6. Step 6: Final answer
    x = 223,264.56

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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.