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Finding the Fourth Proportional to 304,590.48, 420,348.60 and 170,454.48

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Solution

The fourth proportional to 304,590.48, 420,348.60 and 170,454.48 is: 235,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,590.48 : 420,348.60 = 170,454.48 : x
  2. Step 2: Convert to fraction form
    304,590.48/420,348.60 = 170,454.48/x
  3. Step 3: Cross multiply
    304,590.48x = 420,348.60 × 170,454.48
  4. Step 4: Simplify right side
    304,590.48x = 71,650,302,031.73
  5. Step 5: Solve for x
    x = 71,650,302,031.73/304,590.48
  6. Step 6: Final answer
    x = 235,234.87

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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.