Home / 439,085.48-658,480.62-172,776.20

Finding the Fourth Proportional to 439,085.48, 658,480.62 and 172,776.20

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Solution

The fourth proportional to 439,085.48, 658,480.62 and 172,776.20 is: 259,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,085.48 : 658,480.62 = 172,776.20 : x
  2. Step 2: Convert to fraction form
    439,085.48/658,480.62 = 172,776.20/x
  3. Step 3: Cross multiply
    439,085.48x = 658,480.62 × 172,776.20
  4. Step 4: Simplify right side
    439,085.48x = 113,769,779,297.24
  5. Step 5: Solve for x
    x = 113,769,779,297.24/439,085.48
  6. Step 6: Final answer
    x = 259,106.22

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1.5x scale

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.