Home / 263,390.21-363,479.45-142,531.48

Finding the Fourth Proportional to 263,390.21, 363,479.45 and 142,531.48

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Solution

The fourth proportional to 263,390.21, 363,479.45 and 142,531.48 is: 196,693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,390.21 : 363,479.45 = 142,531.48 : x
  2. Step 2: Convert to fraction form
    263,390.21/363,479.45 = 142,531.48/x
  3. Step 3: Cross multiply
    263,390.21x = 363,479.45 × 142,531.48
  4. Step 4: Simplify right side
    263,390.21x = 51,807,263,958.09
  5. Step 5: Solve for x
    x = 51,807,263,958.09/263,390.21
  6. Step 6: Final answer
    x = 196,693.96

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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.