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Finding the Fourth Proportional to 304,834.89, 420,672.08 and 168,877.67

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Solution

The fourth proportional to 304,834.89, 420,672.08 and 168,877.67 is: 233,051.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,834.89 : 420,672.08 = 168,877.67 : x
  2. Step 2: Convert to fraction form
    304,834.89/420,672.08 = 168,877.67/x
  3. Step 3: Cross multiply
    304,834.89x = 420,672.08 × 168,877.67
  4. Step 4: Simplify right side
    304,834.89x = 71,042,117,756.70
  5. Step 5: Solve for x
    x = 71,042,117,756.70/304,834.89
  6. Step 6: Final answer
    x = 233,051.14

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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.