Home / 210,729.67-290,809.24-115,234.31

Finding the Fourth Proportional to 210,729.67, 290,809.24 and 115,234.31

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Solution

The fourth proportional to 210,729.67, 290,809.24 and 115,234.31 is: 159,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,729.67 : 290,809.24 = 115,234.31 : x
  2. Step 2: Convert to fraction form
    210,729.67/290,809.24 = 115,234.31/x
  3. Step 3: Cross multiply
    210,729.67x = 290,809.24 × 115,234.31
  4. Step 4: Simplify right side
    210,729.67x = 33,511,202,551.96
  5. Step 5: Solve for x
    x = 33,511,202,551.96/210,729.67
  6. Step 6: Final answer
    x = 159,024.61

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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.