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Finding the Fourth Proportional to 382,034.67, 573,018.85 and 129,309.54

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Solution

The fourth proportional to 382,034.67, 573,018.85 and 129,309.54 is: 193,953.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,034.67 : 573,018.85 = 129,309.54 : x
  2. Step 2: Convert to fraction form
    382,034.67/573,018.85 = 129,309.54/x
  3. Step 3: Cross multiply
    382,034.67x = 573,018.85 × 129,309.54
  4. Step 4: Simplify right side
    382,034.67x = 74,096,803,904.83
  5. Step 5: Solve for x
    x = 74,096,803,904.83/382,034.67
  6. Step 6: Final answer
    x = 193,953.09

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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.