Home / 215,820.40-323,730.60-141,170.80

Finding the Fourth Proportional to 215,820.40, 323,730.60 and 141,170.80

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Solution

The fourth proportional to 215,820.40, 323,730.60 and 141,170.80 is: 211,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,820.40 : 323,730.60 = 141,170.80 : x
  2. Step 2: Convert to fraction form
    215,820.40/323,730.60 = 141,170.80/x
  3. Step 3: Cross multiply
    215,820.40x = 323,730.60 × 141,170.80
  4. Step 4: Simplify right side
    215,820.40x = 45,701,307,786.48
  5. Step 5: Solve for x
    x = 45,701,307,786.48/215,820.40
  6. Step 6: Final answer
    x = 211,756.20

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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.