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Finding the Fourth Proportional to 235,271.98, 352,819.65 and 85,475.26

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Solution

The fourth proportional to 235,271.98, 352,819.65 and 85,475.26 is: 128,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,271.98 : 352,819.65 = 85,475.26 : x
  2. Step 2: Convert to fraction form
    235,271.98/352,819.65 = 85,475.26/x
  3. Step 3: Cross multiply
    235,271.98x = 352,819.65 × 85,475.26
  4. Step 4: Simplify right side
    235,271.98x = 30,157,351,316.86
  5. Step 5: Solve for x
    x = 30,157,351,316.86/235,271.98
  6. Step 6: Final answer
    x = 128,180.80

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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.