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Finding the Fourth Proportional to 254,454, 381,681 and 79,350

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Solution

The fourth proportional to 254,454, 381,681 and 79,350 is: 119,025

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,454 : 381,681 = 79,350 : x
  2. Step 2: Convert to fraction form
    254,454/381,681 = 79,350/x
  3. Step 3: Cross multiply
    254,454x = 381,681 × 79,350
  4. Step 4: Simplify right side
    254,454x = 30,286,387,350
  5. Step 5: Solve for x
    x = 30,286,387,350/254,454
  6. Step 6: Final answer
    x = 119,025

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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.