Home / 200,143.44-276,267.36-115,294.32

Finding the Fourth Proportional to 200,143.44, 276,267.36 and 115,294.32

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Solution

The fourth proportional to 200,143.44, 276,267.36 and 115,294.32 is: 159,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,143.44 : 276,267.36 = 115,294.32 : x
  2. Step 2: Convert to fraction form
    200,143.44/276,267.36 = 115,294.32/x
  3. Step 3: Cross multiply
    200,143.44x = 276,267.36 × 115,294.32
  4. Step 4: Simplify right side
    200,143.44x = 31,852,057,409.40
  5. Step 5: Solve for x
    x = 31,852,057,409.40/200,143.44
  6. Step 6: Final answer
    x = 159,146.15

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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.