Home / 215,841.60-323,622.24-103,519.20

Finding the Fourth Proportional to 215,841.60, 323,622.24 and 103,519.20

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Solution

The fourth proportional to 215,841.60, 323,622.24 and 103,519.20 is: 155,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,841.60 : 323,622.24 = 103,519.20 : x
  2. Step 2: Convert to fraction form
    215,841.60/323,622.24 = 103,519.20/x
  3. Step 3: Cross multiply
    215,841.60x = 323,622.24 × 103,519.20
  4. Step 4: Simplify right side
    215,841.60x = 33,501,115,387.01
  5. Step 5: Solve for x
    x = 33,501,115,387.01/215,841.60
  6. Step 6: Final answer
    x = 155,211.58

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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.