Home / 287,133.24-396,256.92-166,279.80

Finding the Fourth Proportional to 287,133.24, 396,256.92 and 166,279.80

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Solution

The fourth proportional to 287,133.24, 396,256.92 and 166,279.80 is: 229,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,133.24 : 396,256.92 = 166,279.80 : x
  2. Step 2: Convert to fraction form
    287,133.24/396,256.92 = 166,279.80/x
  3. Step 3: Cross multiply
    287,133.24x = 396,256.92 × 166,279.80
  4. Step 4: Simplify right side
    287,133.24x = 65,889,521,406.22
  5. Step 5: Solve for x
    x = 65,889,521,406.22/287,133.24
  6. Step 6: Final answer
    x = 229,473.68

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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.