Home / 215,743.40-323,615.10-201,746.60

Finding the Fourth Proportional to 215,743.40, 323,615.10 and 201,746.60

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Solution

The fourth proportional to 215,743.40, 323,615.10 and 201,746.60 is: 302,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,743.40 : 323,615.10 = 201,746.60 : x
  2. Step 2: Convert to fraction form
    215,743.40/323,615.10 = 201,746.60/x
  3. Step 3: Cross multiply
    215,743.40x = 323,615.10 × 201,746.60
  4. Step 4: Simplify right side
    215,743.40x = 65,288,246,133.66
  5. Step 5: Solve for x
    x = 65,288,246,133.66/215,743.40
  6. Step 6: Final answer
    x = 302,619.90

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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.