Home / 200,215.54-276,358.95-115,389.10

Finding the Fourth Proportional to 200,215.54, 276,358.95 and 115,389.10

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Solution

The fourth proportional to 200,215.54, 276,358.95 and 115,389.10 is: 159,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,215.54 : 276,358.95 = 115,389.10 : x
  2. Step 2: Convert to fraction form
    200,215.54/276,358.95 = 115,389.10/x
  3. Step 3: Cross multiply
    200,215.54x = 276,358.95 × 115,389.10
  4. Step 4: Simplify right side
    200,215.54x = 31,888,810,517.45
  5. Step 5: Solve for x
    x = 31,888,810,517.45/200,215.54
  6. Step 6: Final answer
    x = 159,272.40

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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.