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Finding the Fourth Proportional to 340,474.08, 469,350.15 and 217,948.42

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Solution

The fourth proportional to 340,474.08, 469,350.15 and 217,948.42 is: 300,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,474.08 : 469,350.15 = 217,948.42 : x
  2. Step 2: Convert to fraction form
    340,474.08/469,350.15 = 217,948.42/x
  3. Step 3: Cross multiply
    340,474.08x = 469,350.15 × 217,948.42
  4. Step 4: Simplify right side
    340,474.08x = 102,294,123,388.64
  5. Step 5: Solve for x
    x = 102,294,123,388.64/340,474.08
  6. Step 6: Final answer
    x = 300,446.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.