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Finding the Fourth Proportional to 340,905.70, 511,358.55 and 246,427.30

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Solution

The fourth proportional to 340,905.70, 511,358.55 and 246,427.30 is: 369,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,905.70 : 511,358.55 = 246,427.30 : x
  2. Step 2: Convert to fraction form
    340,905.70/511,358.55 = 246,427.30/x
  3. Step 3: Cross multiply
    340,905.70x = 511,358.55 × 246,427.30
  4. Step 4: Simplify right side
    340,905.70x = 126,012,706,808.42
  5. Step 5: Solve for x
    x = 126,012,706,808.42/340,905.70
  6. Step 6: Final answer
    x = 369,640.95

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Similar ratio
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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.