Home / 303,985.32-419,282.18-213,361.50

Finding the Fourth Proportional to 303,985.32, 419,282.18 and 213,361.50

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Solution

The fourth proportional to 303,985.32, 419,282.18 and 213,361.50 is: 294,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,985.32 : 419,282.18 = 213,361.50 : x
  2. Step 2: Convert to fraction form
    303,985.32/419,282.18 = 213,361.50/x
  3. Step 3: Cross multiply
    303,985.32x = 419,282.18 × 213,361.50
  4. Step 4: Simplify right side
    303,985.32x = 89,458,674,848.07
  5. Step 5: Solve for x
    x = 89,458,674,848.07/303,985.32
  6. Step 6: Final answer
    x = 294,286.17

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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.