Home / 304,845.59-420,712.75-168,922.17

Finding the Fourth Proportional to 304,845.59, 420,712.75 and 168,922.17

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Solution

The fourth proportional to 304,845.59, 420,712.75 and 168,922.17 is: 233,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,845.59 : 420,712.75 = 168,922.17 : x
  2. Step 2: Convert to fraction form
    304,845.59/420,712.75 = 168,922.17/x
  3. Step 3: Cross multiply
    304,845.59x = 420,712.75 × 168,922.17
  4. Step 4: Simplify right side
    304,845.59x = 71,067,710,676.67
  5. Step 5: Solve for x
    x = 71,067,710,676.67/304,845.59
  6. Step 6: Final answer
    x = 233,126.91

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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.