Home / 460,456.89-690,653.13-172,213.75

Finding the Fourth Proportional to 460,456.89, 690,653.13 and 172,213.75

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Solution

The fourth proportional to 460,456.89, 690,653.13 and 172,213.75 is: 258,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,456.89 : 690,653.13 = 172,213.75 : x
  2. Step 2: Convert to fraction form
    460,456.89/690,653.13 = 172,213.75/x
  3. Step 3: Cross multiply
    460,456.89x = 690,653.13 × 172,213.75
  4. Step 4: Simplify right side
    460,456.89x = 118,939,965,466.54
  5. Step 5: Solve for x
    x = 118,939,965,466.54/460,456.89
  6. Step 6: Final answer
    x = 258,308.58

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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.