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Finding the Fourth Proportional to 608.19, 838.50 and 508.67

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Solution

The fourth proportional to 608.19, 838.50 and 508.67 is: 701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.19 : 838.50 = 508.67 : x
  2. Step 2: Convert to fraction form
    608.19/838.50 = 508.67/x
  3. Step 3: Cross multiply
    608.19x = 838.50 × 508.67
  4. Step 4: Simplify right side
    608.19x = 426,515.60
  5. Step 5: Solve for x
    x = 426,515.60/608.19
  6. Step 6: Final answer
    x = 701.29

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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.