Home / 289,051.08-398,910.06-161,738.52

Finding the Fourth Proportional to 289,051.08, 398,910.06 and 161,738.52

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Solution

The fourth proportional to 289,051.08, 398,910.06 and 161,738.52 is: 223,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,051.08 : 398,910.06 = 161,738.52 : x
  2. Step 2: Convert to fraction form
    289,051.08/398,910.06 = 161,738.52/x
  3. Step 3: Cross multiply
    289,051.08x = 398,910.06 × 161,738.52
  4. Step 4: Simplify right side
    289,051.08x = 64,519,122,717.51
  5. Step 5: Solve for x
    x = 64,519,122,717.51/289,051.08
  6. Step 6: Final answer
    x = 223,210.11

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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.