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Finding the Fourth Proportional to 290,324.67, 400,654.38 and 159,504.01

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Solution

The fourth proportional to 290,324.67, 400,654.38 and 159,504.01 is: 220,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.67 : 400,654.38 = 159,504.01 : x
  2. Step 2: Convert to fraction form
    290,324.67/400,654.38 = 159,504.01/x
  3. Step 3: Cross multiply
    290,324.67x = 400,654.38 × 159,504.01
  4. Step 4: Simplify right side
    290,324.67x = 63,905,980,234.06
  5. Step 5: Solve for x
    x = 63,905,980,234.06/290,324.67
  6. Step 6: Final answer
    x = 220,119.01

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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.