Home / 310,623.65-465,984.78-100,212.38

Finding the Fourth Proportional to 310,623.65, 465,984.78 and 100,212.38

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Solution

The fourth proportional to 310,623.65, 465,984.78 and 100,212.38 is: 150,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,623.65 : 465,984.78 = 100,212.38 : x
  2. Step 2: Convert to fraction form
    310,623.65/465,984.78 = 100,212.38/x
  3. Step 3: Cross multiply
    310,623.65x = 465,984.78 × 100,212.38
  4. Step 4: Simplify right side
    310,623.65x = 46,697,441,141.86
  5. Step 5: Solve for x
    x = 46,697,441,141.86/310,623.65
  6. Step 6: Final answer
    x = 150,334.47

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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.