Home / 287,260.39-396,419.34-166,425.03

Finding the Fourth Proportional to 287,260.39, 396,419.34 and 166,425.03

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Solution

The fourth proportional to 287,260.39, 396,419.34 and 166,425.03 is: 229,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,260.39 : 396,419.34 = 166,425.03 : x
  2. Step 2: Convert to fraction form
    287,260.39/396,419.34 = 166,425.03/x
  3. Step 3: Cross multiply
    287,260.39x = 396,419.34 × 166,425.03
  4. Step 4: Simplify right side
    287,260.39x = 65,974,100,552.08
  5. Step 5: Solve for x
    x = 65,974,100,552.08/287,260.39
  6. Step 6: Final answer
    x = 229,666.54

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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.