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Finding the Fourth Proportional to 306,747.70, 423,202.28 and 177,615.70

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Solution

The fourth proportional to 306,747.70, 423,202.28 and 177,615.70 is: 245,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,747.70 : 423,202.28 = 177,615.70 : x
  2. Step 2: Convert to fraction form
    306,747.70/423,202.28 = 177,615.70/x
  3. Step 3: Cross multiply
    306,747.70x = 423,202.28 × 177,615.70
  4. Step 4: Simplify right side
    306,747.70x = 75,167,369,203.80
  5. Step 5: Solve for x
    x = 75,167,369,203.80/306,747.70
  6. Step 6: Final answer
    x = 245,046.24

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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.