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Finding the Fourth Proportional to 303,420.45, 454,966.65 and 125,945.40

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Solution

The fourth proportional to 303,420.45, 454,966.65 and 125,945.40 is: 188,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,420.45 : 454,966.65 = 125,945.40 : x
  2. Step 2: Convert to fraction form
    303,420.45/454,966.65 = 125,945.40/x
  3. Step 3: Cross multiply
    303,420.45x = 454,966.65 × 125,945.40
  4. Step 4: Simplify right side
    303,420.45x = 57,300,956,720.91
  5. Step 5: Solve for x
    x = 57,300,956,720.91/303,420.45
  6. Step 6: Final answer
    x = 188,850.02

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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.