Home / 330,009.20-455,347.62-200,913.02

Finding the Fourth Proportional to 330,009.20, 455,347.62 and 200,913.02

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Solution

The fourth proportional to 330,009.20, 455,347.62 and 200,913.02 is: 277,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,009.20 : 455,347.62 = 200,913.02 : x
  2. Step 2: Convert to fraction form
    330,009.20/455,347.62 = 200,913.02/x
  3. Step 3: Cross multiply
    330,009.20x = 455,347.62 × 200,913.02
  4. Step 4: Simplify right side
    330,009.20x = 91,485,263,207.27
  5. Step 5: Solve for x
    x = 91,485,263,207.27/330,009.20
  6. Step 6: Final answer
    x = 277,220.35

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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.