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Finding the Fourth Proportional to 290,953.54, 401,512.02 and 163,629.13

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Solution

The fourth proportional to 290,953.54, 401,512.02 and 163,629.13 is: 225,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,953.54 : 401,512.02 = 163,629.13 : x
  2. Step 2: Convert to fraction form
    290,953.54/401,512.02 = 163,629.13/x
  3. Step 3: Cross multiply
    290,953.54x = 401,512.02 × 163,629.13
  4. Step 4: Simplify right side
    290,953.54x = 65,699,061,513.36
  5. Step 5: Solve for x
    x = 65,699,061,513.36/290,953.54
  6. Step 6: Final answer
    x = 225,806.02

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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.