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Finding the Fourth Proportional to 274,630.20, 411,714.90 and 143,302.20

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Solution

The fourth proportional to 274,630.20, 411,714.90 and 143,302.20 is: 214,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,630.20 : 411,714.90 = 143,302.20 : x
  2. Step 2: Convert to fraction form
    274,630.20/411,714.90 = 143,302.20/x
  3. Step 3: Cross multiply
    274,630.20x = 411,714.90 × 143,302.20
  4. Step 4: Simplify right side
    274,630.20x = 58,999,650,942.78
  5. Step 5: Solve for x
    x = 58,999,650,942.78/274,630.20
  6. Step 6: Final answer
    x = 214,833.08

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1.5x scale

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.