Home / 211,429.33-291,780.90-115,939.45

Finding the Fourth Proportional to 211,429.33, 291,780.90 and 115,939.45

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Solution

The fourth proportional to 211,429.33, 291,780.90 and 115,939.45 is: 160,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,429.33 : 291,780.90 = 115,939.45 : x
  2. Step 2: Convert to fraction form
    211,429.33/291,780.90 = 115,939.45/x
  3. Step 3: Cross multiply
    211,429.33x = 291,780.90 × 115,939.45
  4. Step 4: Simplify right side
    211,429.33x = 33,828,917,066.51
  5. Step 5: Solve for x
    x = 33,828,917,066.51/211,429.33
  6. Step 6: Final answer
    x = 160,001.06

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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.