Home / 290,313.72-400,640.04-162,986.04

Finding the Fourth Proportional to 290,313.72, 400,640.04 and 162,986.04

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Solution

The fourth proportional to 290,313.72, 400,640.04 and 162,986.04 is: 224,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313.72 : 400,640.04 = 162,986.04 : x
  2. Step 2: Convert to fraction form
    290,313.72/400,640.04 = 162,986.04/x
  3. Step 3: Cross multiply
    290,313.72x = 400,640.04 × 162,986.04
  4. Step 4: Simplify right side
    290,313.72x = 65,298,733,585.04
  5. Step 5: Solve for x
    x = 65,298,733,585.04/290,313.72
  6. Step 6: Final answer
    x = 224,924.72

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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.