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Finding the Fourth Proportional to 262,372.30, 393,558.45 and 209,884.30

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Solution

The fourth proportional to 262,372.30, 393,558.45 and 209,884.30 is: 314,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,372.30 : 393,558.45 = 209,884.30 : x
  2. Step 2: Convert to fraction form
    262,372.30/393,558.45 = 209,884.30/x
  3. Step 3: Cross multiply
    262,372.30x = 393,558.45 × 209,884.30
  4. Step 4: Simplify right side
    262,372.30x = 82,601,739,787.34
  5. Step 5: Solve for x
    x = 82,601,739,787.34/262,372.30
  6. Step 6: Final answer
    x = 314,826.45

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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.