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Finding the Fourth Proportional to 200,486, 276,670.68 and 119,916.92

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Solution

The fourth proportional to 200,486, 276,670.68 and 119,916.92 is: 165,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,486 : 276,670.68 = 119,916.92 : x
  2. Step 2: Convert to fraction form
    200,486/276,670.68 = 119,916.92/x
  3. Step 3: Cross multiply
    200,486x = 276,670.68 × 119,916.92
  4. Step 4: Simplify right side
    200,486x = 33,177,495,799.91
  5. Step 5: Solve for x
    x = 33,177,495,799.91/200,486
  6. Step 6: Final answer
    x = 165,485.35

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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.