Home / 304,815.20-420,640.47-168,848.73

Finding the Fourth Proportional to 304,815.20, 420,640.47 and 168,848.73

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Solution

The fourth proportional to 304,815.20, 420,640.47 and 168,848.73 is: 233,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,815.20 : 420,640.47 = 168,848.73 : x
  2. Step 2: Convert to fraction form
    304,815.20/420,640.47 = 168,848.73/x
  3. Step 3: Cross multiply
    304,815.20x = 420,640.47 × 168,848.73
  4. Step 4: Simplify right side
    304,815.20x = 71,024,609,146.10
  5. Step 5: Solve for x
    x = 71,024,609,146.10/304,815.20
  6. Step 6: Final answer
    x = 233,008.76

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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.