Home / 213,234.72-319,062.78-170,985.60

Finding the Fourth Proportional to 213,234.72, 319,062.78 and 170,985.60

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Solution

The fourth proportional to 213,234.72, 319,062.78 and 170,985.60 is: 255,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,234.72 : 319,062.78 = 170,985.60 : x
  2. Step 2: Convert to fraction form
    213,234.72/319,062.78 = 170,985.60/x
  3. Step 3: Cross multiply
    213,234.72x = 319,062.78 × 170,985.60
  4. Step 4: Simplify right side
    213,234.72x = 54,555,140,875.97
  5. Step 5: Solve for x
    x = 54,555,140,875.97/213,234.72
  6. Step 6: Final answer
    x = 255,845.49

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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.