Home / 443,434.20-665,021.70-159,091.80

Finding the Fourth Proportional to 443,434.20, 665,021.70 and 159,091.80

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Solution

The fourth proportional to 443,434.20, 665,021.70 and 159,091.80 is: 238,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,434.20 : 665,021.70 = 159,091.80 : x
  2. Step 2: Convert to fraction form
    443,434.20/665,021.70 = 159,091.80/x
  3. Step 3: Cross multiply
    443,434.20x = 665,021.70 × 159,091.80
  4. Step 4: Simplify right side
    443,434.20x = 105,799,499,292.06
  5. Step 5: Solve for x
    x = 105,799,499,292.06/443,434.20
  6. Step 6: Final answer
    x = 238,591.20

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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.