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Finding the Fourth Proportional to 303,356.40, 418,715.10 and 176,073

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Solution

The fourth proportional to 303,356.40, 418,715.10 and 176,073 is: 243,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,356.40 : 418,715.10 = 176,073 : x
  2. Step 2: Convert to fraction form
    303,356.40/418,715.10 = 176,073/x
  3. Step 3: Cross multiply
    303,356.40x = 418,715.10 × 176,073
  4. Step 4: Simplify right side
    303,356.40x = 73,724,423,802.30
  5. Step 5: Solve for x
    x = 73,724,423,802.30/303,356.40
  6. Step 6: Final answer
    x = 243,029.07

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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.