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Finding the Fourth Proportional to 272,874.42, 409,372.92 and 104,390.10

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Solution

The fourth proportional to 272,874.42, 409,372.92 and 104,390.10 is: 156,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,874.42 : 409,372.92 = 104,390.10 : x
  2. Step 2: Convert to fraction form
    272,874.42/409,372.92 = 104,390.10/x
  3. Step 3: Cross multiply
    272,874.42x = 409,372.92 × 104,390.10
  4. Step 4: Simplify right side
    272,874.42x = 42,734,480,056.09
  5. Step 5: Solve for x
    x = 42,734,480,056.09/272,874.42
  6. Step 6: Final answer
    x = 156,608.60

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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.