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Finding the Fourth Proportional to 347,000.40, 520,500.60 and 169,621.20

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Solution

The fourth proportional to 347,000.40, 520,500.60 and 169,621.20 is: 254,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,000.40 : 520,500.60 = 169,621.20 : x
  2. Step 2: Convert to fraction form
    347,000.40/520,500.60 = 169,621.20/x
  3. Step 3: Cross multiply
    347,000.40x = 520,500.60 × 169,621.20
  4. Step 4: Simplify right side
    347,000.40x = 88,287,936,372.72
  5. Step 5: Solve for x
    x = 88,287,936,372.72/347,000.40
  6. Step 6: Final answer
    x = 254,431.80

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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.