Home / 286,359.23-395,152.68-165,508.35

Finding the Fourth Proportional to 286,359.23, 395,152.68 and 165,508.35

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Solution

The fourth proportional to 286,359.23, 395,152.68 and 165,508.35 is: 228,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,359.23 : 395,152.68 = 165,508.35 : x
  2. Step 2: Convert to fraction form
    286,359.23/395,152.68 = 165,508.35/x
  3. Step 3: Cross multiply
    286,359.23x = 395,152.68 × 165,508.35
  4. Step 4: Simplify right side
    286,359.23x = 65,401,067,203.71
  5. Step 5: Solve for x
    x = 65,401,067,203.71/286,359.23
  6. Step 6: Final answer
    x = 228,388.19

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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.