Home / 383,146.43-528,758.47-213,380.55

Finding the Fourth Proportional to 383,146.43, 528,758.47 and 213,380.55

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Solution

The fourth proportional to 383,146.43, 528,758.47 and 213,380.55 is: 294,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,146.43 : 528,758.47 = 213,380.55 : x
  2. Step 2: Convert to fraction form
    383,146.43/528,758.47 = 213,380.55/x
  3. Step 3: Cross multiply
    383,146.43x = 528,758.47 × 213,380.55
  4. Step 4: Simplify right side
    383,146.43x = 112,826,773,145.76
  5. Step 5: Solve for x
    x = 112,826,773,145.76/383,146.43
  6. Step 6: Final answer
    x = 294,474.29

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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.