Home / 215,815.20-323,722.80-141,165.60

Finding the Fourth Proportional to 215,815.20, 323,722.80 and 141,165.60

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Solution

The fourth proportional to 215,815.20, 323,722.80 and 141,165.60 is: 211,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,815.20 : 323,722.80 = 141,165.60 : x
  2. Step 2: Convert to fraction form
    215,815.20/323,722.80 = 141,165.60/x
  3. Step 3: Cross multiply
    215,815.20x = 323,722.80 × 141,165.60
  4. Step 4: Simplify right side
    215,815.20x = 45,698,523,295.68
  5. Step 5: Solve for x
    x = 45,698,523,295.68/215,815.20
  6. Step 6: Final answer
    x = 211,748.40

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1.5x scale

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.