Home / 286,395.68-395,182.10-165,513.62

Finding the Fourth Proportional to 286,395.68, 395,182.10 and 165,513.62

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Solution

The fourth proportional to 286,395.68, 395,182.10 and 165,513.62 is: 228,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,395.68 : 395,182.10 = 165,513.62 : x
  2. Step 2: Convert to fraction form
    286,395.68/395,182.10 = 165,513.62/x
  3. Step 3: Cross multiply
    286,395.68x = 395,182.10 × 165,513.62
  4. Step 4: Simplify right side
    286,395.68x = 65,408,019,754.98
  5. Step 5: Solve for x
    x = 65,408,019,754.98/286,395.68
  6. Step 6: Final answer
    x = 228,383.40

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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.