Home / 205,018.20-306,944.10-181,690.20

Finding the Fourth Proportional to 205,018.20, 306,944.10 and 181,690.20

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Solution

The fourth proportional to 205,018.20, 306,944.10 and 181,690.20 is: 272,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,018.20 : 306,944.10 = 181,690.20 : x
  2. Step 2: Convert to fraction form
    205,018.20/306,944.10 = 181,690.20/x
  3. Step 3: Cross multiply
    205,018.20x = 306,944.10 × 181,690.20
  4. Step 4: Simplify right side
    205,018.20x = 55,768,734,917.82
  5. Step 5: Solve for x
    x = 55,768,734,917.82/205,018.20
  6. Step 6: Final answer
    x = 272,018.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.