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Finding the Fourth Proportional to 185,455.80, 278,183.70 and 45,215.64

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Solution

The fourth proportional to 185,455.80, 278,183.70 and 45,215.64 is: 67,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,455.80 : 278,183.70 = 45,215.64 : x
  2. Step 2: Convert to fraction form
    185,455.80/278,183.70 = 45,215.64/x
  3. Step 3: Cross multiply
    185,455.80x = 278,183.70 × 45,215.64
  4. Step 4: Simplify right side
    185,455.80x = 12,578,254,033.07
  5. Step 5: Solve for x
    x = 12,578,254,033.07/185,455.80
  6. Step 6: Final answer
    x = 67,823.46

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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.