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Finding the Fourth Proportional to 304,636.56, 420,398.40 and 170,500.56

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Solution

The fourth proportional to 304,636.56, 420,398.40 and 170,500.56 is: 235,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,636.56 : 420,398.40 = 170,500.56 : x
  2. Step 2: Convert to fraction form
    304,636.56/420,398.40 = 170,500.56/x
  3. Step 3: Cross multiply
    304,636.56x = 420,398.40 × 170,500.56
  4. Step 4: Simplify right side
    304,636.56x = 71,678,162,623.10
  5. Step 5: Solve for x
    x = 71,678,162,623.10/304,636.56
  6. Step 6: Final answer
    x = 235,290.74

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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.