Home / 263,635.12-363,816.80-142,776.60

Finding the Fourth Proportional to 263,635.12, 363,816.80 and 142,776.60

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Solution

The fourth proportional to 263,635.12, 363,816.80 and 142,776.60 is: 197,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,635.12 : 363,816.80 = 142,776.60 : x
  2. Step 2: Convert to fraction form
    263,635.12/363,816.80 = 142,776.60/x
  3. Step 3: Cross multiply
    263,635.12x = 363,816.80 × 142,776.60
  4. Step 4: Simplify right side
    263,635.12x = 51,944,525,726.88
  5. Step 5: Solve for x
    x = 51,944,525,726.88/263,635.12
  6. Step 6: Final answer
    x = 197,031.89

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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.