Home / 379,933.20-569,899.68-143,220.53

Finding the Fourth Proportional to 379,933.20, 569,899.68 and 143,220.53

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Solution

The fourth proportional to 379,933.20, 569,899.68 and 143,220.53 is: 214,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,933.20 : 569,899.68 = 143,220.53 : x
  2. Step 2: Convert to fraction form
    379,933.20/569,899.68 = 143,220.53/x
  3. Step 3: Cross multiply
    379,933.20x = 569,899.68 × 143,220.53
  4. Step 4: Simplify right side
    379,933.20x = 81,621,331,366.93
  5. Step 5: Solve for x
    x = 81,621,331,366.93/379,933.20
  6. Step 6: Final answer
    x = 214,830.74

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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.