Home / 213,735.06-319,024.08-188,520.84

Finding the Fourth Proportional to 213,735.06, 319,024.08 and 188,520.84

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Solution

The fourth proportional to 213,735.06, 319,024.08 and 188,520.84 is: 281,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,735.06 : 319,024.08 = 188,520.84 : x
  2. Step 2: Convert to fraction form
    213,735.06/319,024.08 = 188,520.84/x
  3. Step 3: Cross multiply
    213,735.06x = 319,024.08 × 188,520.84
  4. Step 4: Simplify right side
    213,735.06x = 60,142,687,541.83
  5. Step 5: Solve for x
    x = 60,142,687,541.83/213,735.06
  6. Step 6: Final answer
    x = 281,388.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.