Home / 281,021.54-387,800.11-160,201.77

Finding the Fourth Proportional to 281,021.54, 387,800.11 and 160,201.77

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Solution

The fourth proportional to 281,021.54, 387,800.11 and 160,201.77 is: 221,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,021.54 : 387,800.11 = 160,201.77 : x
  2. Step 2: Convert to fraction form
    281,021.54/387,800.11 = 160,201.77/x
  3. Step 3: Cross multiply
    281,021.54x = 387,800.11 × 160,201.77
  4. Step 4: Simplify right side
    281,021.54x = 62,126,262,774.20
  5. Step 5: Solve for x
    x = 62,126,262,774.20/281,021.54
  6. Step 6: Final answer
    x = 221,072.96

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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.