Home / 257,664.88-355,581.20-155,676.16

Finding the Fourth Proportional to 257,664.88, 355,581.20 and 155,676.16

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Solution

The fourth proportional to 257,664.88, 355,581.20 and 155,676.16 is: 214,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,664.88 : 355,581.20 = 155,676.16 : x
  2. Step 2: Convert to fraction form
    257,664.88/355,581.20 = 155,676.16/x
  3. Step 3: Cross multiply
    257,664.88x = 355,581.20 × 155,676.16
  4. Step 4: Simplify right side
    257,664.88x = 55,355,515,784.19
  5. Step 5: Solve for x
    x = 55,355,515,784.19/257,664.88
  6. Step 6: Final answer
    x = 214,835.32

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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.