Home / 287,176.35-396,274.74-166,356.45

Finding the Fourth Proportional to 287,176.35, 396,274.74 and 166,356.45

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Solution

The fourth proportional to 287,176.35, 396,274.74 and 166,356.45 is: 229,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,176.35 : 396,274.74 = 166,356.45 : x
  2. Step 2: Convert to fraction form
    287,176.35/396,274.74 = 166,356.45/x
  3. Step 3: Cross multiply
    287,176.35x = 396,274.74 × 166,356.45
  4. Step 4: Simplify right side
    287,176.35x = 65,922,858,971.07
  5. Step 5: Solve for x
    x = 65,922,858,971.07/287,176.35
  6. Step 6: Final answer
    x = 229,555.32

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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.