Home / 213,542.20-319,730.10-154,055.80

Finding the Fourth Proportional to 213,542.20, 319,730.10 and 154,055.80

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Solution

The fourth proportional to 213,542.20, 319,730.10 and 154,055.80 is: 230,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,542.20 : 319,730.10 = 154,055.80 : x
  2. Step 2: Convert to fraction form
    213,542.20/319,730.10 = 154,055.80/x
  3. Step 3: Cross multiply
    213,542.20x = 319,730.10 × 154,055.80
  4. Step 4: Simplify right side
    213,542.20x = 49,256,276,339.58
  5. Step 5: Solve for x
    x = 49,256,276,339.58/213,542.20
  6. Step 6: Final answer
    x = 230,662.96

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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.