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Finding the Fourth Proportional to 343,576.76, 515,115.96 and 230,977.64

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Solution

The fourth proportional to 343,576.76, 515,115.96 and 230,977.64 is: 346,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,576.76 : 515,115.96 = 230,977.64 : x
  2. Step 2: Convert to fraction form
    343,576.76/515,115.96 = 230,977.64/x
  3. Step 3: Cross multiply
    343,576.76x = 515,115.96 × 230,977.64
  4. Step 4: Simplify right side
    343,576.76x = 118,980,269,188.76
  5. Step 5: Solve for x
    x = 118,980,269,188.76/343,576.76
  6. Step 6: Final answer
    x = 346,298.95

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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.