Home / 272,814.20-409,221.30-188,833.40

Finding the Fourth Proportional to 272,814.20, 409,221.30 and 188,833.40

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Solution

The fourth proportional to 272,814.20, 409,221.30 and 188,833.40 is: 283,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,814.20 : 409,221.30 = 188,833.40 : x
  2. Step 2: Convert to fraction form
    272,814.20/409,221.30 = 188,833.40/x
  3. Step 3: Cross multiply
    272,814.20x = 409,221.30 × 188,833.40
  4. Step 4: Simplify right side
    272,814.20x = 77,274,649,431.42
  5. Step 5: Solve for x
    x = 77,274,649,431.42/272,814.20
  6. Step 6: Final answer
    x = 283,250.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.