Home / 240,653.89-331,998.10-145,107.51

Finding the Fourth Proportional to 240,653.89, 331,998.10 and 145,107.51

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Solution

The fourth proportional to 240,653.89, 331,998.10 and 145,107.51 is: 200,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,653.89 : 331,998.10 = 145,107.51 : x
  2. Step 2: Convert to fraction form
    240,653.89/331,998.10 = 145,107.51/x
  3. Step 3: Cross multiply
    240,653.89x = 331,998.10 × 145,107.51
  4. Step 4: Simplify right side
    240,653.89x = 48,175,416,630.47
  5. Step 5: Solve for x
    x = 48,175,416,630.47/240,653.89
  6. Step 6: Final answer
    x = 200,185.49

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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.