Home / 320,948.44-481,512.63-128,957.69

Finding the Fourth Proportional to 320,948.44, 481,512.63 and 128,957.69

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Solution

The fourth proportional to 320,948.44, 481,512.63 and 128,957.69 is: 193,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,948.44 : 481,512.63 = 128,957.69 : x
  2. Step 2: Convert to fraction form
    320,948.44/481,512.63 = 128,957.69/x
  3. Step 3: Cross multiply
    320,948.44x = 481,512.63 × 128,957.69
  4. Step 4: Simplify right side
    320,948.44x = 62,094,755,449.49
  5. Step 5: Solve for x
    x = 62,094,755,449.49/320,948.44
  6. Step 6: Final answer
    x = 193,472.68

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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.