Home / 287,239.86-396,408.33-166,419.18

Finding the Fourth Proportional to 287,239.86, 396,408.33 and 166,419.18

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Solution

The fourth proportional to 287,239.86, 396,408.33 and 166,419.18 is: 229,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,239.86 : 396,408.33 = 166,419.18 : x
  2. Step 2: Convert to fraction form
    287,239.86/396,408.33 = 166,419.18/x
  3. Step 3: Cross multiply
    287,239.86x = 396,408.33 × 166,419.18
  4. Step 4: Simplify right side
    287,239.86x = 65,969,949,223.77
  5. Step 5: Solve for x
    x = 65,969,949,223.77/287,239.86
  6. Step 6: Final answer
    x = 229,668.51

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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.