Home / 260,816.56-391,178.59-118,628.62

Finding the Fourth Proportional to 260,816.56, 391,178.59 and 118,628.62

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Solution

The fourth proportional to 260,816.56, 391,178.59 and 118,628.62 is: 177,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,816.56 : 391,178.59 = 118,628.62 : x
  2. Step 2: Convert to fraction form
    260,816.56/391,178.59 = 118,628.62/x
  3. Step 3: Cross multiply
    260,816.56x = 391,178.59 × 118,628.62
  4. Step 4: Simplify right side
    260,816.56x = 46,404,976,305.25
  5. Step 5: Solve for x
    x = 46,404,976,305.25/260,816.56
  6. Step 6: Final answer
    x = 177,921.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.