Home / 397,020.99-547,889.67-215,735.10

Finding the Fourth Proportional to 397,020.99, 547,889.67 and 215,735.10

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Solution

The fourth proportional to 397,020.99, 547,889.67 and 215,735.10 is: 297,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,020.99 : 547,889.67 = 215,735.10 : x
  2. Step 2: Convert to fraction form
    397,020.99/547,889.67 = 215,735.10/x
  3. Step 3: Cross multiply
    397,020.99x = 547,889.67 × 215,735.10
  4. Step 4: Simplify right side
    397,020.99x = 118,199,030,691.83
  5. Step 5: Solve for x
    x = 118,199,030,691.83/397,020.99
  6. Step 6: Final answer
    x = 297,714.81

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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.