Home / 380,868.51-571,377.50-140,984.51

Finding the Fourth Proportional to 380,868.51, 571,377.50 and 140,984.51

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Solution

The fourth proportional to 380,868.51, 571,377.50 and 140,984.51 is: 211,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,868.51 : 571,377.50 = 140,984.51 : x
  2. Step 2: Convert to fraction form
    380,868.51/571,377.50 = 140,984.51/x
  3. Step 3: Cross multiply
    380,868.51x = 571,377.50 × 140,984.51
  4. Step 4: Simplify right side
    380,868.51x = 80,555,376,862.53
  5. Step 5: Solve for x
    x = 80,555,376,862.53/380,868.51
  6. Step 6: Final answer
    x = 211,504.43

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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.