Home / 289,946.70-400,121.55-162,619.56

Finding the Fourth Proportional to 289,946.70, 400,121.55 and 162,619.56

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Solution

The fourth proportional to 289,946.70, 400,121.55 and 162,619.56 is: 224,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,946.70 : 400,121.55 = 162,619.56 : x
  2. Step 2: Convert to fraction form
    289,946.70/400,121.55 = 162,619.56/x
  3. Step 3: Cross multiply
    289,946.70x = 400,121.55 × 162,619.56
  4. Step 4: Simplify right side
    289,946.70x = 65,067,590,407.52
  5. Step 5: Solve for x
    x = 65,067,590,407.52/289,946.70
  6. Step 6: Final answer
    x = 224,412.25

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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.