Home / 334,440-501,658.17-81,721.89

Finding the Fourth Proportional to 334,440, 501,658.17 and 81,721.89

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Solution

The fourth proportional to 334,440, 501,658.17 and 81,721.89 is: 122,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,440 : 501,658.17 = 81,721.89 : x
  2. Step 2: Convert to fraction form
    334,440/501,658.17 = 81,721.89/x
  3. Step 3: Cross multiply
    334,440x = 501,658.17 × 81,721.89
  4. Step 4: Simplify right side
    334,440x = 40,996,453,786.34
  5. Step 5: Solve for x
    x = 40,996,453,786.34/334,440
  6. Step 6: Final answer
    x = 122,582.39

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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.