Home / 289,945.86-400,145.22-162,629.64

Finding the Fourth Proportional to 289,945.86, 400,145.22 and 162,629.64

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Solution

The fourth proportional to 289,945.86, 400,145.22 and 162,629.64 is: 224,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,945.86 : 400,145.22 = 162,629.64 : x
  2. Step 2: Convert to fraction form
    289,945.86/400,145.22 = 162,629.64/x
  3. Step 3: Cross multiply
    289,945.86x = 400,145.22 × 162,629.64
  4. Step 4: Simplify right side
    289,945.86x = 65,075,473,076.32
  5. Step 5: Solve for x
    x = 65,075,473,076.32/289,945.86
  6. Step 6: Final answer
    x = 224,440.08

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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.