Home / 286,865.20-395,887.35-165,983.10

Finding the Fourth Proportional to 286,865.20, 395,887.35 and 165,983.10

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Solution

The fourth proportional to 286,865.20, 395,887.35 and 165,983.10 is: 229,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,865.20 : 395,887.35 = 165,983.10 : x
  2. Step 2: Convert to fraction form
    286,865.20/395,887.35 = 165,983.10/x
  3. Step 3: Cross multiply
    286,865.20x = 395,887.35 × 165,983.10
  4. Step 4: Simplify right side
    286,865.20x = 65,710,609,603.79
  5. Step 5: Solve for x
    x = 65,710,609,603.79/286,865.20
  6. Step 6: Final answer
    x = 229,064.42

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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.