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Finding the Fourth Proportional to 308,459.14, 425,674.74 and 179,428.57

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Solution

The fourth proportional to 308,459.14, 425,674.74 and 179,428.57 is: 247,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,459.14 : 425,674.74 = 179,428.57 : x
  2. Step 2: Convert to fraction form
    308,459.14/425,674.74 = 179,428.57/x
  3. Step 3: Cross multiply
    308,459.14x = 425,674.74 × 179,428.57
  4. Step 4: Simplify right side
    308,459.14x = 76,378,209,491.99
  5. Step 5: Solve for x
    x = 76,378,209,491.99/308,459.14
  6. Step 6: Final answer
    x = 247,612.08

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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.