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Finding the Fourth Proportional to 200,007.63, 276,080.03 and 115,158.51

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Solution

The fourth proportional to 200,007.63, 276,080.03 and 115,158.51 is: 158,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,007.63 : 276,080.03 = 115,158.51 : x
  2. Step 2: Convert to fraction form
    200,007.63/276,080.03 = 115,158.51/x
  3. Step 3: Cross multiply
    200,007.63x = 276,080.03 × 115,158.51
  4. Step 4: Simplify right side
    200,007.63x = 31,792,964,751.61
  5. Step 5: Solve for x
    x = 31,792,964,751.61/200,007.63
  6. Step 6: Final answer
    x = 158,958.76

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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.