Home / 219,486.80-302,887.44-122,690.20

Finding the Fourth Proportional to 219,486.80, 302,887.44 and 122,690.20

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Solution

The fourth proportional to 219,486.80, 302,887.44 and 122,690.20 is: 169,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,486.80 : 302,887.44 = 122,690.20 : x
  2. Step 2: Convert to fraction form
    219,486.80/302,887.44 = 122,690.20/x
  3. Step 3: Cross multiply
    219,486.80x = 302,887.44 × 122,690.20
  4. Step 4: Simplify right side
    219,486.80x = 37,161,320,591.09
  5. Step 5: Solve for x
    x = 37,161,320,591.09/219,486.80
  6. Step 6: Final answer
    x = 169,310.05

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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.