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Finding the Fourth Proportional to 544,078.80, 815,826.60 and 228,178.80

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Solution

The fourth proportional to 544,078.80, 815,826.60 and 228,178.80 is: 342,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,078.80 : 815,826.60 = 228,178.80 : x
  2. Step 2: Convert to fraction form
    544,078.80/815,826.60 = 228,178.80/x
  3. Step 3: Cross multiply
    544,078.80x = 815,826.60 × 228,178.80
  4. Step 4: Simplify right side
    544,078.80x = 186,154,334,596.08
  5. Step 5: Solve for x
    x = 186,154,334,596.08/544,078.80
  6. Step 6: Final answer
    x = 342,145.91

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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.