Home / 281,101.56-387,941.20-160,245.72

Finding the Fourth Proportional to 281,101.56, 387,941.20 and 160,245.72

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Solution

The fourth proportional to 281,101.56, 387,941.20 and 160,245.72 is: 221,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,101.56 : 387,941.20 = 160,245.72 : x
  2. Step 2: Convert to fraction form
    281,101.56/387,941.20 = 160,245.72/x
  3. Step 3: Cross multiply
    281,101.56x = 387,941.20 × 160,245.72
  4. Step 4: Simplify right side
    281,101.56x = 62,165,916,911.66
  5. Step 5: Solve for x
    x = 62,165,916,911.66/281,101.56
  6. Step 6: Final answer
    x = 221,151.09

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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.