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Finding the Fourth Proportional to 262,435.30, 393,715.44 and 84,942.34

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Solution

The fourth proportional to 262,435.30, 393,715.44 and 84,942.34 is: 127,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,435.30 : 393,715.44 = 84,942.34 : x
  2. Step 2: Convert to fraction form
    262,435.30/393,715.44 = 84,942.34/x
  3. Step 3: Cross multiply
    262,435.30x = 393,715.44 × 84,942.34
  4. Step 4: Simplify right side
    262,435.30x = 33,443,110,767.73
  5. Step 5: Solve for x
    x = 33,443,110,767.73/262,435.30
  6. Step 6: Final answer
    x = 127,433.74

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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.