Home / 213,247.45-319,871.58-55,475.65

Finding the Fourth Proportional to 213,247.45, 319,871.58 and 55,475.65

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Solution

The fourth proportional to 213,247.45, 319,871.58 and 55,475.65 is: 83,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,247.45 : 319,871.58 = 55,475.65 : x
  2. Step 2: Convert to fraction form
    213,247.45/319,871.58 = 55,475.65/x
  3. Step 3: Cross multiply
    213,247.45x = 319,871.58 × 55,475.65
  4. Step 4: Simplify right side
    213,247.45x = 17,745,083,817.03
  5. Step 5: Solve for x
    x = 17,745,083,817.03/213,247.45
  6. Step 6: Final answer
    x = 83,213.58

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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.