Home / 210,518.36-290,514.89-115,025.74

Finding the Fourth Proportional to 210,518.36, 290,514.89 and 115,025.74

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Solution

The fourth proportional to 210,518.36, 290,514.89 and 115,025.74 is: 158,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,518.36 : 290,514.89 = 115,025.74 : x
  2. Step 2: Convert to fraction form
    210,518.36/290,514.89 = 115,025.74/x
  3. Step 3: Cross multiply
    210,518.36x = 290,514.89 × 115,025.74
  4. Step 4: Simplify right side
    210,518.36x = 33,416,690,203.27
  5. Step 5: Solve for x
    x = 33,416,690,203.27/210,518.36
  6. Step 6: Final answer
    x = 158,735.28

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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.