Home / 315,514.26-435,427.32-172,287.60

Finding the Fourth Proportional to 315,514.26, 435,427.32 and 172,287.60

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Solution

The fourth proportional to 315,514.26, 435,427.32 and 172,287.60 is: 237,766.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,514.26 : 435,427.32 = 172,287.60 : x
  2. Step 2: Convert to fraction form
    315,514.26/435,427.32 = 172,287.60/x
  3. Step 3: Cross multiply
    315,514.26x = 435,427.32 × 172,287.60
  4. Step 4: Simplify right side
    315,514.26x = 75,018,727,937.23
  5. Step 5: Solve for x
    x = 75,018,727,937.23/315,514.26
  6. Step 6: Final answer
    x = 237,766.52

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1.5x scale

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.