Home / 304,964.54-420,860.28-168,985.76

Finding the Fourth Proportional to 304,964.54, 420,860.28 and 168,985.76

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Solution

The fourth proportional to 304,964.54, 420,860.28 and 168,985.76 is: 233,205.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,964.54 : 420,860.28 = 168,985.76 : x
  2. Step 2: Convert to fraction form
    304,964.54/420,860.28 = 168,985.76/x
  3. Step 3: Cross multiply
    304,964.54x = 420,860.28 × 168,985.76
  4. Step 4: Simplify right side
    304,964.54x = 71,119,394,269.61
  5. Step 5: Solve for x
    x = 71,119,394,269.61/304,964.54
  6. Step 6: Final answer
    x = 233,205.46

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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.