Home / 304,557.05-420,282.11-166,735.65

Finding the Fourth Proportional to 304,557.05, 420,282.11 and 166,735.65

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Solution

The fourth proportional to 304,557.05, 420,282.11 and 166,735.65 is: 230,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,557.05 : 420,282.11 = 166,735.65 : x
  2. Step 2: Convert to fraction form
    304,557.05/420,282.11 = 166,735.65/x
  3. Step 3: Cross multiply
    304,557.05x = 420,282.11 × 166,735.65
  4. Step 4: Simplify right side
    304,557.05x = 70,076,009,960.54
  5. Step 5: Solve for x
    x = 70,076,009,960.54/304,557.05
  6. Step 6: Final answer
    x = 230,091.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.