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Finding the Fourth Proportional to 306,663.27, 423,185.90 and 170,693.73

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Solution

The fourth proportional to 306,663.27, 423,185.90 and 170,693.73 is: 235,552.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,663.27 : 423,185.90 = 170,693.73 : x
  2. Step 2: Convert to fraction form
    306,663.27/423,185.90 = 170,693.73/x
  3. Step 3: Cross multiply
    306,663.27x = 423,185.90 × 170,693.73
  4. Step 4: Simplify right side
    306,663.27x = 72,235,178,900.94
  5. Step 5: Solve for x
    x = 72,235,178,900.94/306,663.27
  6. Step 6: Final answer
    x = 235,552.11

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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.