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Finding the Fourth Proportional to 295,511.76, 443,306 and 135,549.12

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Solution

The fourth proportional to 295,511.76, 443,306 and 135,549.12 is: 203,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,511.76 : 443,306 = 135,549.12 : x
  2. Step 2: Convert to fraction form
    295,511.76/443,306 = 135,549.12/x
  3. Step 3: Cross multiply
    295,511.76x = 443,306 × 135,549.12
  4. Step 4: Simplify right side
    295,511.76x = 60,089,738,190.72
  5. Step 5: Solve for x
    x = 60,089,738,190.72/295,511.76
  6. Step 6: Final answer
    x = 203,341.28

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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.