Home / 278,815.14-417,987.60-120,924.67

Finding the Fourth Proportional to 278,815.14, 417,987.60 and 120,924.67

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Solution

The fourth proportional to 278,815.14, 417,987.60 and 120,924.67 is: 181,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,815.14 : 417,987.60 = 120,924.67 : x
  2. Step 2: Convert to fraction form
    278,815.14/417,987.60 = 120,924.67/x
  3. Step 3: Cross multiply
    278,815.14x = 417,987.60 × 120,924.67
  4. Step 4: Simplify right side
    278,815.14x = 50,545,012,594.09
  5. Step 5: Solve for x
    x = 50,545,012,594.09/278,815.14
  6. Step 6: Final answer
    x = 181,285.04

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1.5x scale

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.