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Finding the Fourth Proportional to 254,590.80, 381,837.60 and 77,103.60

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Solution

The fourth proportional to 254,590.80, 381,837.60 and 77,103.60 is: 115,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,590.80 : 381,837.60 = 77,103.60 : x
  2. Step 2: Convert to fraction form
    254,590.80/381,837.60 = 77,103.60/x
  3. Step 3: Cross multiply
    254,590.80x = 381,837.60 × 77,103.60
  4. Step 4: Simplify right side
    254,590.80x = 29,441,053,575.36
  5. Step 5: Solve for x
    x = 29,441,053,575.36/254,590.80
  6. Step 6: Final answer
    x = 115,640.68

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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.