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Finding the Fourth Proportional to 262,637.70, 393,956.55 and 262,637.70

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Solution

The fourth proportional to 262,637.70, 393,956.55 and 262,637.70 is: 393,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,637.70 : 393,956.55 = 262,637.70 : x
  2. Step 2: Convert to fraction form
    262,637.70/393,956.55 = 262,637.70/x
  3. Step 3: Cross multiply
    262,637.70x = 393,956.55 × 262,637.70
  4. Step 4: Simplify right side
    262,637.70x = 103,467,842,191.94
  5. Step 5: Solve for x
    x = 103,467,842,191.94/262,637.70
  6. Step 6: Final answer
    x = 393,956.55

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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.