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Finding the Fourth Proportional to 290,915.56, 401,460.96 and 163,588.44

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Solution

The fourth proportional to 290,915.56, 401,460.96 and 163,588.44 is: 225,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,915.56 : 401,460.96 = 163,588.44 : x
  2. Step 2: Convert to fraction form
    290,915.56/401,460.96 = 163,588.44/x
  3. Step 3: Cross multiply
    290,915.56x = 401,460.96 × 163,588.44
  4. Step 4: Simplify right side
    290,915.56x = 65,674,372,167.30
  5. Step 5: Solve for x
    x = 65,674,372,167.30/290,915.56
  6. Step 6: Final answer
    x = 225,750.63

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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.