Home / 257,982.46-387,084.57-133,410.94

Finding the Fourth Proportional to 257,982.46, 387,084.57 and 133,410.94

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Solution

The fourth proportional to 257,982.46, 387,084.57 and 133,410.94 is: 200,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,982.46 : 387,084.57 = 133,410.94 : x
  2. Step 2: Convert to fraction form
    257,982.46/387,084.57 = 133,410.94/x
  3. Step 3: Cross multiply
    257,982.46x = 387,084.57 × 133,410.94
  4. Step 4: Simplify right side
    257,982.46x = 51,641,316,343.20
  5. Step 5: Solve for x
    x = 51,641,316,343.20/257,982.46
  6. Step 6: Final answer
    x = 200,173.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.