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Finding the Fourth Proportional to 303,313.45, 454,806.15 and 125,838.40

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Solution

The fourth proportional to 303,313.45, 454,806.15 and 125,838.40 is: 188,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,313.45 : 454,806.15 = 125,838.40 : x
  2. Step 2: Convert to fraction form
    303,313.45/454,806.15 = 125,838.40/x
  3. Step 3: Cross multiply
    303,313.45x = 454,806.15 × 125,838.40
  4. Step 4: Simplify right side
    303,313.45x = 57,232,078,226.16
  5. Step 5: Solve for x
    x = 57,232,078,226.16/303,313.45
  6. Step 6: Final answer
    x = 188,689.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.