Home / 281,402.02-421,995.33-139,198.48

Finding the Fourth Proportional to 281,402.02, 421,995.33 and 139,198.48

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Solution

The fourth proportional to 281,402.02, 421,995.33 and 139,198.48 is: 208,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,402.02 : 421,995.33 = 139,198.48 : x
  2. Step 2: Convert to fraction form
    281,402.02/421,995.33 = 139,198.48/x
  3. Step 3: Cross multiply
    281,402.02x = 421,995.33 × 139,198.48
  4. Step 4: Simplify right side
    281,402.02x = 58,741,108,503.10
  5. Step 5: Solve for x
    x = 58,741,108,503.10/281,402.02
  6. Step 6: Final answer
    x = 208,744.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.