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Finding the Fourth Proportional to 255,442.82, 352,522.12 and 142,265.56

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Solution

The fourth proportional to 255,442.82, 352,522.12 and 142,265.56 is: 196,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,442.82 : 352,522.12 = 142,265.56 : x
  2. Step 2: Convert to fraction form
    255,442.82/352,522.12 = 142,265.56/x
  3. Step 3: Cross multiply
    255,442.82x = 352,522.12 × 142,265.56
  4. Step 4: Simplify right side
    255,442.82x = 50,151,756,814.19
  5. Step 5: Solve for x
    x = 50,151,756,814.19/255,442.82
  6. Step 6: Final answer
    x = 196,332.61

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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.