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Finding the Fourth Proportional to 347,325.20, 521,522.40 and 189,861.20

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Solution

The fourth proportional to 347,325.20, 521,522.40 and 189,861.20 is: 285,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,325.20 : 521,522.40 = 189,861.20 : x
  2. Step 2: Convert to fraction form
    347,325.20/521,522.40 = 189,861.20/x
  3. Step 3: Cross multiply
    347,325.20x = 521,522.40 × 189,861.20
  4. Step 4: Simplify right side
    347,325.20x = 99,016,868,690.88
  5. Step 5: Solve for x
    x = 99,016,868,690.88/347,325.20
  6. Step 6: Final answer
    x = 285,084.03

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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.