Home / 290,223.51-400,486.47-162,874.50

Finding the Fourth Proportional to 290,223.51, 400,486.47 and 162,874.50

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Solution

The fourth proportional to 290,223.51, 400,486.47 and 162,874.50 is: 224,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,223.51 : 400,486.47 = 162,874.50 : x
  2. Step 2: Convert to fraction form
    290,223.51/400,486.47 = 162,874.50/x
  3. Step 3: Cross multiply
    290,223.51x = 400,486.47 × 162,874.50
  4. Step 4: Simplify right side
    290,223.51x = 65,229,033,558.02
  5. Step 5: Solve for x
    x = 65,229,033,558.02/290,223.51
  6. Step 6: Final answer
    x = 224,754.48

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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.