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Finding the Fourth Proportional to 383,663.22, 575,554.05 and 130,884.51

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Solution

The fourth proportional to 383,663.22, 575,554.05 and 130,884.51 is: 196,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,663.22 : 575,554.05 = 130,884.51 : x
  2. Step 2: Convert to fraction form
    383,663.22/575,554.05 = 130,884.51/x
  3. Step 3: Cross multiply
    383,663.22x = 575,554.05 × 130,884.51
  4. Step 4: Simplify right side
    383,663.22x = 75,331,109,812.77
  5. Step 5: Solve for x
    x = 75,331,109,812.77/383,663.22
  6. Step 6: Final answer
    x = 196,346.97

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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.