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Finding the Fourth Proportional to 278,601.81, 417,666.63 and 110,240.91

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Solution

The fourth proportional to 278,601.81, 417,666.63 and 110,240.91 is: 165,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,601.81 : 417,666.63 = 110,240.91 : x
  2. Step 2: Convert to fraction form
    278,601.81/417,666.63 = 110,240.91/x
  3. Step 3: Cross multiply
    278,601.81x = 417,666.63 × 110,240.91
  4. Step 4: Simplify right side
    278,601.81x = 46,043,949,367.83
  5. Step 5: Solve for x
    x = 46,043,949,367.83/278,601.81
  6. Step 6: Final answer
    x = 165,267.95

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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.