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Finding the Fourth Proportional to 379,352.16, 569,021.76 and 113,113.44

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Solution

The fourth proportional to 379,352.16, 569,021.76 and 113,113.44 is: 169,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,352.16 : 569,021.76 = 113,113.44 : x
  2. Step 2: Convert to fraction form
    379,352.16/569,021.76 = 113,113.44/x
  3. Step 3: Cross multiply
    379,352.16x = 569,021.76 × 113,113.44
  4. Step 4: Simplify right side
    379,352.16x = 64,364,008,708.45
  5. Step 5: Solve for x
    x = 64,364,008,708.45/379,352.16
  6. Step 6: Final answer
    x = 169,668.23

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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.