Home / 281,284.61-388,228.08-213,182.79

Finding the Fourth Proportional to 281,284.61, 388,228.08 and 213,182.79

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Solution

The fourth proportional to 281,284.61, 388,228.08 and 213,182.79 is: 294,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,284.61 : 388,228.08 = 213,182.79 : x
  2. Step 2: Convert to fraction form
    281,284.61/388,228.08 = 213,182.79/x
  3. Step 3: Cross multiply
    281,284.61x = 388,228.08 × 213,182.79
  4. Step 4: Simplify right side
    281,284.61x = 82,763,546,050.18
  5. Step 5: Solve for x
    x = 82,763,546,050.18/281,284.61
  6. Step 6: Final answer
    x = 294,234.18

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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.