Home / 328,002.12-491,994.54-91,361.16

Finding the Fourth Proportional to 328,002.12, 491,994.54 and 91,361.16

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Solution

The fourth proportional to 328,002.12, 491,994.54 and 91,361.16 is: 137,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,002.12 : 491,994.54 = 91,361.16 : x
  2. Step 2: Convert to fraction form
    328,002.12/491,994.54 = 91,361.16/x
  3. Step 3: Cross multiply
    328,002.12x = 491,994.54 × 91,361.16
  4. Step 4: Simplify right side
    328,002.12x = 44,949,191,888.07
  5. Step 5: Solve for x
    x = 44,949,191,888.07/328,002.12
  6. Step 6: Final answer
    x = 137,039.33

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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.