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Finding the Fourth Proportional to 254,468, 381,702 and 79,364

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Solution

The fourth proportional to 254,468, 381,702 and 79,364 is: 119,046

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,468 : 381,702 = 79,364 : x
  2. Step 2: Convert to fraction form
    254,468/381,702 = 79,364/x
  3. Step 3: Cross multiply
    254,468x = 381,702 × 79,364
  4. Step 4: Simplify right side
    254,468x = 30,293,397,528
  5. Step 5: Solve for x
    x = 30,293,397,528/254,468
  6. Step 6: Final answer
    x = 119,046

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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.