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Finding the Fourth Proportional to 290,796.60, 401,271.66 and 169,966.20

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Solution

The fourth proportional to 290,796.60, 401,271.66 and 169,966.20 is: 234,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,796.60 : 401,271.66 = 169,966.20 : x
  2. Step 2: Convert to fraction form
    290,796.60/401,271.66 = 169,966.20/x
  3. Step 3: Cross multiply
    290,796.60x = 401,271.66 × 169,966.20
  4. Step 4: Simplify right side
    290,796.60x = 68,202,619,217.89
  5. Step 5: Solve for x
    x = 68,202,619,217.89/290,796.60
  6. Step 6: Final answer
    x = 234,537.20

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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.