Home / 258,213.15-356,234.36-190,390.64

Finding the Fourth Proportional to 258,213.15, 356,234.36 and 190,390.64

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Solution

The fourth proportional to 258,213.15, 356,234.36 and 190,390.64 is: 262,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,213.15 : 356,234.36 = 190,390.64 : x
  2. Step 2: Convert to fraction form
    258,213.15/356,234.36 = 190,390.64/x
  3. Step 3: Cross multiply
    258,213.15x = 356,234.36 × 190,390.64
  4. Step 4: Simplify right side
    258,213.15x = 67,823,685,057.27
  5. Step 5: Solve for x
    x = 67,823,685,057.27/258,213.15
  6. Step 6: Final answer
    x = 262,665.50

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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.