Home / 320,186.37-441,814.50-205,620.20

Finding the Fourth Proportional to 320,186.37, 441,814.50 and 205,620.20

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Solution

The fourth proportional to 320,186.37, 441,814.50 and 205,620.20 is: 283,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,186.37 : 441,814.50 = 205,620.20 : x
  2. Step 2: Convert to fraction form
    320,186.37/441,814.50 = 205,620.20/x
  3. Step 3: Cross multiply
    320,186.37x = 441,814.50 × 205,620.20
  4. Step 4: Simplify right side
    320,186.37x = 90,845,985,852.90
  5. Step 5: Solve for x
    x = 90,845,985,852.90/320,186.37
  6. Step 6: Final answer
    x = 283,728.46

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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.