Home / 354,945.01-489,752.80-225,935.41

Finding the Fourth Proportional to 354,945.01, 489,752.80 and 225,935.41

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Solution

The fourth proportional to 354,945.01, 489,752.80 and 225,935.41 is: 311,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,945.01 : 489,752.80 = 225,935.41 : x
  2. Step 2: Convert to fraction form
    354,945.01/489,752.80 = 225,935.41/x
  3. Step 3: Cross multiply
    354,945.01x = 489,752.80 × 225,935.41
  4. Step 4: Simplify right side
    354,945.01x = 110,652,499,666.65
  5. Step 5: Solve for x
    x = 110,652,499,666.65/354,945.01
  6. Step 6: Final answer
    x = 311,745.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.