Home / 286,508.09-395,429.88-165,722.81

Finding the Fourth Proportional to 286,508.09, 395,429.88 and 165,722.81

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Solution

The fourth proportional to 286,508.09, 395,429.88 and 165,722.81 is: 228,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,508.09 : 395,429.88 = 165,722.81 : x
  2. Step 2: Convert to fraction form
    286,508.09/395,429.88 = 165,722.81/x
  3. Step 3: Cross multiply
    286,508.09x = 395,429.88 × 165,722.81
  4. Step 4: Simplify right side
    286,508.09x = 65,531,750,341.88
  5. Step 5: Solve for x
    x = 65,531,750,341.88/286,508.09
  6. Step 6: Final answer
    x = 228,725.66

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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.