Home / 278,439.50-417,121.68-166,209.42

Finding the Fourth Proportional to 278,439.50, 417,121.68 and 166,209.42

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Solution

The fourth proportional to 278,439.50, 417,121.68 and 166,209.42 is: 248,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,439.50 : 417,121.68 = 166,209.42 : x
  2. Step 2: Convert to fraction form
    278,439.50/417,121.68 = 166,209.42/x
  3. Step 3: Cross multiply
    278,439.50x = 417,121.68 × 166,209.42
  4. Step 4: Simplify right side
    278,439.50x = 69,329,552,502.23
  5. Step 5: Solve for x
    x = 69,329,552,502.23/278,439.50
  6. Step 6: Final answer
    x = 248,993.24

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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.