Home / 210,514.20-290,513.96-115,027.21

Finding the Fourth Proportional to 210,514.20, 290,513.96 and 115,027.21

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Solution

The fourth proportional to 210,514.20, 290,513.96 and 115,027.21 is: 158,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,514.20 : 290,513.96 = 115,027.21 : x
  2. Step 2: Convert to fraction form
    210,514.20/290,513.96 = 115,027.21/x
  3. Step 3: Cross multiply
    210,514.20x = 290,513.96 × 115,027.21
  4. Step 4: Simplify right side
    210,514.20x = 33,417,010,284.85
  5. Step 5: Solve for x
    x = 33,417,010,284.85/210,514.20
  6. Step 6: Final answer
    x = 158,739.93

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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.