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Finding the Fourth Proportional to 219,941.40, 303,522.66 and 119,339.40

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Solution

The fourth proportional to 219,941.40, 303,522.66 and 119,339.40 is: 164,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,941.40 : 303,522.66 = 119,339.40 : x
  2. Step 2: Convert to fraction form
    219,941.40/303,522.66 = 119,339.40/x
  3. Step 3: Cross multiply
    219,941.40x = 303,522.66 × 119,339.40
  4. Step 4: Simplify right side
    219,941.40x = 36,222,212,130.80
  5. Step 5: Solve for x
    x = 36,222,212,130.80/219,941.40
  6. Step 6: Final answer
    x = 164,690.29

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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.