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Finding the Fourth Proportional to 263,599.60, 363,762.88 and 142,739.92

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Solution

The fourth proportional to 263,599.60, 363,762.88 and 142,739.92 is: 196,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,599.60 : 363,762.88 = 142,739.92 : x
  2. Step 2: Convert to fraction form
    263,599.60/363,762.88 = 142,739.92/x
  3. Step 3: Cross multiply
    263,599.60x = 363,762.88 × 142,739.92
  4. Step 4: Simplify right side
    263,599.60x = 51,923,484,390.17
  5. Step 5: Solve for x
    x = 51,923,484,390.17/263,599.60
  6. Step 6: Final answer
    x = 196,978.62

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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.