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Finding the Fourth Proportional to 277,748.75, 416,644.72 and 90,779.15

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Solution

The fourth proportional to 277,748.75, 416,644.72 and 90,779.15 is: 136,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,748.75 : 416,644.72 = 90,779.15 : x
  2. Step 2: Convert to fraction form
    277,748.75/416,644.72 = 90,779.15/x
  3. Step 3: Cross multiply
    277,748.75x = 416,644.72 × 90,779.15
  4. Step 4: Simplify right side
    277,748.75x = 37,822,653,533.59
  5. Step 5: Solve for x
    x = 37,822,653,533.59/277,748.75
  6. Step 6: Final answer
    x = 136,175.78

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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.