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Finding the Fourth Proportional to 255,425.21, 352,486.87 and 148,057.52

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Solution

The fourth proportional to 255,425.21, 352,486.87 and 148,057.52 is: 204,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,425.21 : 352,486.87 = 148,057.52 : x
  2. Step 2: Convert to fraction form
    255,425.21/352,486.87 = 148,057.52/x
  3. Step 3: Cross multiply
    255,425.21x = 352,486.87 × 148,057.52
  4. Step 4: Simplify right side
    255,425.21x = 52,188,329,672.18
  5. Step 5: Solve for x
    x = 52,188,329,672.18/255,425.21
  6. Step 6: Final answer
    x = 204,319.42

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1.5x scale

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.