Home / 304,869.47-420,685.82-168,869.67

Finding the Fourth Proportional to 304,869.47, 420,685.82 and 168,869.67

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Solution

The fourth proportional to 304,869.47, 420,685.82 and 168,869.67 is: 233,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,869.47 : 420,685.82 = 168,869.67 : x
  2. Step 2: Convert to fraction form
    304,869.47/420,685.82 = 168,869.67/x
  3. Step 3: Cross multiply
    304,869.47x = 420,685.82 × 168,869.67
  4. Step 4: Simplify right side
    304,869.47x = 71,041,074,752.73
  5. Step 5: Solve for x
    x = 71,041,074,752.73/304,869.47
  6. Step 6: Final answer
    x = 233,021.29

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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.