Home / 210,955.27-291,107.05-115,443.51

Finding the Fourth Proportional to 210,955.27, 291,107.05 and 115,443.51

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Solution

The fourth proportional to 210,955.27, 291,107.05 and 115,443.51 is: 159,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,955.27 : 291,107.05 = 115,443.51 : x
  2. Step 2: Convert to fraction form
    210,955.27/291,107.05 = 115,443.51/x
  3. Step 3: Cross multiply
    210,955.27x = 291,107.05 × 115,443.51
  4. Step 4: Simplify right side
    210,955.27x = 33,606,419,637.75
  5. Step 5: Solve for x
    x = 33,606,419,637.75/210,955.27
  6. Step 6: Final answer
    x = 159,305.91

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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.