Home / 487,942.84-731,732.21-168,004.31

Finding the Fourth Proportional to 487,942.84, 731,732.21 and 168,004.31

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Solution

The fourth proportional to 487,942.84, 731,732.21 and 168,004.31 is: 251,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,942.84 : 731,732.21 = 168,004.31 : x
  2. Step 2: Convert to fraction form
    487,942.84/731,732.21 = 168,004.31/x
  3. Step 3: Cross multiply
    487,942.84x = 731,732.21 × 168,004.31
  4. Step 4: Simplify right side
    487,942.84x = 122,934,164,205.80
  5. Step 5: Solve for x
    x = 122,934,164,205.80/487,942.84
  6. Step 6: Final answer
    x = 251,943.78

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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.