Home / 245,904.20-368,337.90-219,638.60

Finding the Fourth Proportional to 245,904.20, 368,337.90 and 219,638.60

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Solution

The fourth proportional to 245,904.20, 368,337.90 and 219,638.60 is: 328,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,904.20 : 368,337.90 = 219,638.60 : x
  2. Step 2: Convert to fraction form
    245,904.20/368,337.90 = 219,638.60/x
  3. Step 3: Cross multiply
    245,904.20x = 368,337.90 × 219,638.60
  4. Step 4: Simplify right side
    245,904.20x = 80,901,220,682.94
  5. Step 5: Solve for x
    x = 80,901,220,682.94/245,904.20
  6. Step 6: Final answer
    x = 328,994.87

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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.