Home / 383,283.38-528,994.05-213,572.18

Finding the Fourth Proportional to 383,283.38, 528,994.05 and 213,572.18

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Solution

The fourth proportional to 383,283.38, 528,994.05 and 213,572.18 is: 294,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,283.38 : 528,994.05 = 213,572.18 : x
  2. Step 2: Convert to fraction form
    383,283.38/528,994.05 = 213,572.18/x
  3. Step 3: Cross multiply
    383,283.38x = 528,994.05 × 213,572.18
  4. Step 4: Simplify right side
    383,283.38x = 112,978,412,465.53
  5. Step 5: Solve for x
    x = 112,978,412,465.53/383,283.38
  6. Step 6: Final answer
    x = 294,764.71

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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.