Home / 320,397.23-480,668.75-170,558.57

Finding the Fourth Proportional to 320,397.23, 480,668.75 and 170,558.57

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Solution

The fourth proportional to 320,397.23, 480,668.75 and 170,558.57 is: 255,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,397.23 : 480,668.75 = 170,558.57 : x
  2. Step 2: Convert to fraction form
    320,397.23/480,668.75 = 170,558.57/x
  3. Step 3: Cross multiply
    320,397.23x = 480,668.75 × 170,558.57
  4. Step 4: Simplify right side
    320,397.23x = 81,982,174,992.57
  5. Step 5: Solve for x
    x = 81,982,174,992.57/320,397.23
  6. Step 6: Final answer
    x = 255,876.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.