Home / 213,140.46-319,685.18-165,802.85

Finding the Fourth Proportional to 213,140.46, 319,685.18 and 165,802.85

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Solution

The fourth proportional to 213,140.46, 319,685.18 and 165,802.85 is: 248,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,140.46 : 319,685.18 = 165,802.85 : x
  2. Step 2: Convert to fraction form
    213,140.46/319,685.18 = 165,802.85/x
  3. Step 3: Cross multiply
    213,140.46x = 319,685.18 × 165,802.85
  4. Step 4: Simplify right side
    213,140.46x = 53,004,711,519.32
  5. Step 5: Solve for x
    x = 53,004,711,519.32/213,140.46
  6. Step 6: Final answer
    x = 248,684.42

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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.