Home / 278,623.92-417,931.40-110,145.81

Finding the Fourth Proportional to 278,623.92, 417,931.40 and 110,145.81

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Solution

The fourth proportional to 278,623.92, 417,931.40 and 110,145.81 is: 165,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,623.92 : 417,931.40 = 110,145.81 : x
  2. Step 2: Convert to fraction form
    278,623.92/417,931.40 = 110,145.81/x
  3. Step 3: Cross multiply
    278,623.92x = 417,931.40 × 110,145.81
  4. Step 4: Simplify right side
    278,623.92x = 46,033,391,449.61
  5. Step 5: Solve for x
    x = 46,033,391,449.61/278,623.92
  6. Step 6: Final answer
    x = 165,216.94

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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.