Home / 304,830.12-420,660.06-168,863.65

Finding the Fourth Proportional to 304,830.12, 420,660.06 and 168,863.65

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Solution

The fourth proportional to 304,830.12, 420,660.06 and 168,863.65 is: 233,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,830.12 : 420,660.06 = 168,863.65 : x
  2. Step 2: Convert to fraction form
    304,830.12/420,660.06 = 168,863.65/x
  3. Step 3: Cross multiply
    304,830.12x = 420,660.06 × 168,863.65
  4. Step 4: Simplify right side
    304,830.12x = 71,034,193,140.82
  5. Step 5: Solve for x
    x = 71,034,193,140.82/304,830.12
  6. Step 6: Final answer
    x = 233,028.79

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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.