Home / 255,421.76-352,481.64-142,271.24

Finding the Fourth Proportional to 255,421.76, 352,481.64 and 142,271.24

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Solution

The fourth proportional to 255,421.76, 352,481.64 and 142,271.24 is: 196,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,421.76 : 352,481.64 = 142,271.24 : x
  2. Step 2: Convert to fraction form
    255,421.76/352,481.64 = 142,271.24/x
  3. Step 3: Cross multiply
    255,421.76x = 352,481.64 × 142,271.24
  4. Step 4: Simplify right side
    255,421.76x = 50,148,000,000.03
  5. Step 5: Solve for x
    x = 50,148,000,000.03/255,421.76
  6. Step 6: Final answer
    x = 196,334.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.