Home / 212,930.46-319,019.85-189,762.84

Finding the Fourth Proportional to 212,930.46, 319,019.85 and 189,762.84

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Solution

The fourth proportional to 212,930.46, 319,019.85 and 189,762.84 is: 284,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,930.46 : 319,019.85 = 189,762.84 : x
  2. Step 2: Convert to fraction form
    212,930.46/319,019.85 = 189,762.84/x
  3. Step 3: Cross multiply
    212,930.46x = 319,019.85 × 189,762.84
  4. Step 4: Simplify right side
    212,930.46x = 60,538,112,752.37
  5. Step 5: Solve for x
    x = 60,538,112,752.37/212,930.46
  6. Step 6: Final answer
    x = 284,309.31

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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.