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Finding the Fourth Proportional to 290,996.76, 401,543.04 and 163,669.64

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Solution

The fourth proportional to 290,996.76, 401,543.04 and 163,669.64 is: 225,845.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,996.76 : 401,543.04 = 163,669.64 : x
  2. Step 2: Convert to fraction form
    290,996.76/401,543.04 = 163,669.64/x
  3. Step 3: Cross multiply
    290,996.76x = 401,543.04 × 163,669.64
  4. Step 4: Simplify right side
    290,996.76x = 65,720,404,801.31
  5. Step 5: Solve for x
    x = 65,720,404,801.31/290,996.76
  6. Step 6: Final answer
    x = 225,845.83

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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.