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Finding the Fourth Proportional to 185,994.60, 279,027.81 and 79,377

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Solution

The fourth proportional to 185,994.60, 279,027.81 and 79,377 is: 119,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,994.60 : 279,027.81 = 79,377 : x
  2. Step 2: Convert to fraction form
    185,994.60/279,027.81 = 79,377/x
  3. Step 3: Cross multiply
    185,994.60x = 279,027.81 × 79,377
  4. Step 4: Simplify right side
    185,994.60x = 22,148,390,077.49
  5. Step 5: Solve for x
    x = 22,148,390,077.49/185,994.60
  6. Step 6: Final answer
    x = 119,080.82

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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.