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Finding the Fourth Proportional to 304,508.85, 420,306.56 and 177,208.95

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Solution

The fourth proportional to 304,508.85, 420,306.56 and 177,208.95 is: 244,597.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,508.85 : 420,306.56 = 177,208.95 : x
  2. Step 2: Convert to fraction form
    304,508.85/420,306.56 = 177,208.95/x
  3. Step 3: Cross multiply
    304,508.85x = 420,306.56 × 177,208.95
  4. Step 4: Simplify right side
    304,508.85x = 74,482,083,289.67
  5. Step 5: Solve for x
    x = 74,482,083,289.67/304,508.85
  6. Step 6: Final answer
    x = 244,597.43

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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.