Home / 383,120.20-528,711.06-213,358.60

Finding the Fourth Proportional to 383,120.20, 528,711.06 and 213,358.60

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Solution

The fourth proportional to 383,120.20, 528,711.06 and 213,358.60 is: 294,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,120.20 : 528,711.06 = 213,358.60 : x
  2. Step 2: Convert to fraction form
    383,120.20/528,711.06 = 213,358.60/x
  3. Step 3: Cross multiply
    383,120.20x = 528,711.06 × 213,358.60
  4. Step 4: Simplify right side
    383,120.20x = 112,805,051,566.12
  5. Step 5: Solve for x
    x = 112,805,051,566.12/383,120.20
  6. Step 6: Final answer
    x = 294,437.75

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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.