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Finding the Fourth Proportional to 255,539.41, 352,651.67 and 142,369.45

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Solution

The fourth proportional to 255,539.41, 352,651.67 and 142,369.45 is: 196,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,539.41 : 352,651.67 = 142,369.45 : x
  2. Step 2: Convert to fraction form
    255,539.41/352,651.67 = 142,369.45/x
  3. Step 3: Cross multiply
    255,539.41x = 352,651.67 × 142,369.45
  4. Step 4: Simplify right side
    255,539.41x = 50,206,824,299.48
  5. Step 5: Solve for x
    x = 50,206,824,299.48/255,539.41
  6. Step 6: Final answer
    x = 196,473.90

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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.