Home / 287,427.26-431,325.41-192,764.34

Finding the Fourth Proportional to 287,427.26, 431,325.41 and 192,764.34

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Solution

The fourth proportional to 287,427.26, 431,325.41 and 192,764.34 is: 289,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,427.26 : 431,325.41 = 192,764.34 : x
  2. Step 2: Convert to fraction form
    287,427.26/431,325.41 = 192,764.34/x
  3. Step 3: Cross multiply
    287,427.26x = 431,325.41 × 192,764.34
  4. Step 4: Simplify right side
    287,427.26x = 83,144,157,983.88
  5. Step 5: Solve for x
    x = 83,144,157,983.88/287,427.26
  6. Step 6: Final answer
    x = 289,270.26

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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.