Home / 355,017.03-489,922.34-211,783.11

Finding the Fourth Proportional to 355,017.03, 489,922.34 and 211,783.11

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Solution

The fourth proportional to 355,017.03, 489,922.34 and 211,783.11 is: 292,260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,017.03 : 489,922.34 = 211,783.11 : x
  2. Step 2: Convert to fraction form
    355,017.03/489,922.34 = 211,783.11/x
  3. Step 3: Cross multiply
    355,017.03x = 489,922.34 × 211,783.11
  4. Step 4: Simplify right side
    355,017.03x = 103,757,275,764.76
  5. Step 5: Solve for x
    x = 103,757,275,764.76/355,017.03
  6. Step 6: Final answer
    x = 292,260.00

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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.