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Finding the Fourth Proportional to 290,244.35, 400,525.63 and 161,189.48

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Solution

The fourth proportional to 290,244.35, 400,525.63 and 161,189.48 is: 222,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,244.35 : 400,525.63 = 161,189.48 : x
  2. Step 2: Convert to fraction form
    290,244.35/400,525.63 = 161,189.48/x
  3. Step 3: Cross multiply
    290,244.35x = 400,525.63 × 161,189.48
  4. Step 4: Simplify right side
    290,244.35x = 64,560,518,624.71
  5. Step 5: Solve for x
    x = 64,560,518,624.71/290,244.35
  6. Step 6: Final answer
    x = 222,435.06

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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.