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Finding the Fourth Proportional to 217,367.40, 326,051.10 and 134,423.40

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Solution

The fourth proportional to 217,367.40, 326,051.10 and 134,423.40 is: 201,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,367.40 : 326,051.10 = 134,423.40 : x
  2. Step 2: Convert to fraction form
    217,367.40/326,051.10 = 134,423.40/x
  3. Step 3: Cross multiply
    217,367.40x = 326,051.10 × 134,423.40
  4. Step 4: Simplify right side
    217,367.40x = 43,828,897,435.74
  5. Step 5: Solve for x
    x = 43,828,897,435.74/217,367.40
  6. Step 6: Final answer
    x = 201,635.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.