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Finding the Fourth Proportional to 340,384.20, 510,770.70 and 235,278.60

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Solution

The fourth proportional to 340,384.20, 510,770.70 and 235,278.60 is: 353,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,384.20 : 510,770.70 = 235,278.60 : x
  2. Step 2: Convert to fraction form
    340,384.20/510,770.70 = 235,278.60/x
  3. Step 3: Cross multiply
    340,384.20x = 510,770.70 × 235,278.60
  4. Step 4: Simplify right side
    340,384.20x = 120,173,415,217.02
  5. Step 5: Solve for x
    x = 120,173,415,217.02/340,384.20
  6. Step 6: Final answer
    x = 353,052.27

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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.