Home / 331,570.72-457,430.64-231,027.04

Finding the Fourth Proportional to 331,570.72, 457,430.64 and 231,027.04

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Solution

The fourth proportional to 331,570.72, 457,430.64 and 231,027.04 is: 318,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,570.72 : 457,430.64 = 231,027.04 : x
  2. Step 2: Convert to fraction form
    331,570.72/457,430.64 = 231,027.04/x
  3. Step 3: Cross multiply
    331,570.72x = 457,430.64 × 231,027.04
  4. Step 4: Simplify right side
    331,570.72x = 105,678,846,764.51
  5. Step 5: Solve for x
    x = 105,678,846,764.51/331,570.72
  6. Step 6: Final answer
    x = 318,721.89

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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.