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Finding the Fourth Proportional to 304,810.20, 420,596.42 and 168,810.57

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Solution

The fourth proportional to 304,810.20, 420,596.42 and 168,810.57 is: 232,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,810.20 : 420,596.42 = 168,810.57 : x
  2. Step 2: Convert to fraction form
    304,810.20/420,596.42 = 168,810.57/x
  3. Step 3: Cross multiply
    304,810.20x = 420,596.42 × 168,810.57
  4. Step 4: Simplify right side
    304,810.20x = 71,001,120,556.11
  5. Step 5: Solve for x
    x = 71,001,120,556.11/304,810.20
  6. Step 6: Final answer
    x = 232,935.51

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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.