Home / 308,302.25-425,338.98-187,399.43

Finding the Fourth Proportional to 308,302.25, 425,338.98 and 187,399.43

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Solution

The fourth proportional to 308,302.25, 425,338.98 and 187,399.43 is: 258,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,302.25 : 425,338.98 = 187,399.43 : x
  2. Step 2: Convert to fraction form
    308,302.25/425,338.98 = 187,399.43/x
  3. Step 3: Cross multiply
    308,302.25x = 425,338.98 × 187,399.43
  4. Step 4: Simplify right side
    308,302.25x = 79,708,282,408.78
  5. Step 5: Solve for x
    x = 79,708,282,408.78/308,302.25
  6. Step 6: Final answer
    x = 258,539.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.