Home / 200,211.79-276,353.78-115,385.35

Finding the Fourth Proportional to 200,211.79, 276,353.78 and 115,385.35

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Solution

The fourth proportional to 200,211.79, 276,353.78 and 115,385.35 is: 159,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,211.79 : 276,353.78 = 115,385.35 : x
  2. Step 2: Convert to fraction form
    200,211.79/276,353.78 = 115,385.35/x
  3. Step 3: Cross multiply
    200,211.79x = 276,353.78 × 115,385.35
  4. Step 4: Simplify right side
    200,211.79x = 31,887,177,629.12
  5. Step 5: Solve for x
    x = 31,887,177,629.12/200,211.79
  6. Step 6: Final answer
    x = 159,267.23

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1.5x scale

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.