Home / 213,009.80-319,125.90-173,352.20

Finding the Fourth Proportional to 213,009.80, 319,125.90 and 173,352.20

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Solution

The fourth proportional to 213,009.80, 319,125.90 and 173,352.20 is: 259,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,009.80 : 319,125.90 = 173,352.20 : x
  2. Step 2: Convert to fraction form
    213,009.80/319,125.90 = 173,352.20/x
  3. Step 3: Cross multiply
    213,009.80x = 319,125.90 × 173,352.20
  4. Step 4: Simplify right side
    213,009.80x = 55,321,176,841.98
  5. Step 5: Solve for x
    x = 55,321,176,841.98/213,009.80
  6. Step 6: Final answer
    x = 259,711.89

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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.