Home / 211,865.65-317,798.98-51,942.29

Finding the Fourth Proportional to 211,865.65, 317,798.98 and 51,942.29

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Solution

The fourth proportional to 211,865.65, 317,798.98 and 51,942.29 is: 77,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,865.65 : 317,798.98 = 51,942.29 : x
  2. Step 2: Convert to fraction form
    211,865.65/317,798.98 = 51,942.29/x
  3. Step 3: Cross multiply
    211,865.65x = 317,798.98 × 51,942.29
  4. Step 4: Simplify right side
    211,865.65x = 16,507,206,780.86
  5. Step 5: Solve for x
    x = 16,507,206,780.86/211,865.65
  6. Step 6: Final answer
    x = 77,913.56

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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.