Home / 383,913.72-529,515.36-281,907.18

Finding the Fourth Proportional to 383,913.72, 529,515.36 and 281,907.18

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Solution

The fourth proportional to 383,913.72, 529,515.36 and 281,907.18 is: 388,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,913.72 : 529,515.36 = 281,907.18 : x
  2. Step 2: Convert to fraction form
    383,913.72/529,515.36 = 281,907.18/x
  3. Step 3: Cross multiply
    383,913.72x = 529,515.36 × 281,907.18
  4. Step 4: Simplify right side
    383,913.72x = 149,274,181,904.29
  5. Step 5: Solve for x
    x = 149,274,181,904.29/383,913.72
  6. Step 6: Final answer
    x = 388,822.21

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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.