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Finding the Fourth Proportional to 262,446, 393,669 and 65,454

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Solution

The fourth proportional to 262,446, 393,669 and 65,454 is: 98,181

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,446 : 393,669 = 65,454 : x
  2. Step 2: Convert to fraction form
    262,446/393,669 = 65,454/x
  3. Step 3: Cross multiply
    262,446x = 393,669 × 65,454
  4. Step 4: Simplify right side
    262,446x = 25,767,210,726
  5. Step 5: Solve for x
    x = 25,767,210,726/262,446
  6. Step 6: Final answer
    x = 98,181

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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.