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Finding the Fourth Proportional to 306,693, 423,172.62 and 179,343.96

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Solution

The fourth proportional to 306,693, 423,172.62 and 179,343.96 is: 247,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,693 : 423,172.62 = 179,343.96 : x
  2. Step 2: Convert to fraction form
    306,693/423,172.62 = 179,343.96/x
  3. Step 3: Cross multiply
    306,693x = 423,172.62 × 179,343.96
  4. Step 4: Simplify right side
    306,693x = 75,893,453,434.38
  5. Step 5: Solve for x
    x = 75,893,453,434.38/306,693
  6. Step 6: Final answer
    x = 247,457.40

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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.