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Finding the Fourth Proportional to 173,428.38, 259,870.41 and 103,269.42

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Solution

The fourth proportional to 173,428.38, 259,870.41 and 103,269.42 is: 154,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,428.38 : 259,870.41 = 103,269.42 : x
  2. Step 2: Convert to fraction form
    173,428.38/259,870.41 = 103,269.42/x
  3. Step 3: Cross multiply
    173,428.38x = 259,870.41 × 103,269.42
  4. Step 4: Simplify right side
    173,428.38x = 26,836,666,515.86
  5. Step 5: Solve for x
    x = 26,836,666,515.86/173,428.38
  6. Step 6: Final answer
    x = 154,742.07

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Why These Related Problems?

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