Home / 436,943.49-655,450.80-121,400.43

Finding the Fourth Proportional to 436,943.49, 655,450.80 and 121,400.43

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Solution

The fourth proportional to 436,943.49, 655,450.80 and 121,400.43 is: 182,110.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,943.49 : 655,450.80 = 121,400.43 : x
  2. Step 2: Convert to fraction form
    436,943.49/655,450.80 = 121,400.43/x
  3. Step 3: Cross multiply
    436,943.49x = 655,450.80 × 121,400.43
  4. Step 4: Simplify right side
    436,943.49x = 79,572,008,963.84
  5. Step 5: Solve for x
    x = 79,572,008,963.84/436,943.49
  6. Step 6: Final answer
    x = 182,110.53

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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.