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Finding the Fourth Proportional to 262,362.80, 393,641.40 and 252,642.80

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Solution

The fourth proportional to 262,362.80, 393,641.40 and 252,642.80 is: 379,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,362.80 : 393,641.40 = 252,642.80 : x
  2. Step 2: Convert to fraction form
    262,362.80/393,641.40 = 252,642.80/x
  3. Step 3: Cross multiply
    262,362.80x = 393,641.40 × 252,642.80
  4. Step 4: Simplify right side
    262,362.80x = 99,450,665,491.92
  5. Step 5: Solve for x
    x = 99,450,665,491.92/262,362.80
  6. Step 6: Final answer
    x = 379,057.80

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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.