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Finding the Fourth Proportional to 290,324.42, 400,654.04 and 159,503.76

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Solution

The fourth proportional to 290,324.42, 400,654.04 and 159,503.76 is: 220,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.42 : 400,654.04 = 159,503.76 : x
  2. Step 2: Convert to fraction form
    290,324.42/400,654.04 = 159,503.76/x
  3. Step 3: Cross multiply
    290,324.42x = 400,654.04 × 159,503.76
  4. Step 4: Simplify right side
    290,324.42x = 63,905,825,839.19
  5. Step 5: Solve for x
    x = 63,905,825,839.19/290,324.42
  6. Step 6: Final answer
    x = 220,118.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.