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Finding the Fourth Proportional to 303,287.72, 454,892.06 and 90,051.35

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Solution

The fourth proportional to 303,287.72, 454,892.06 and 90,051.35 is: 135,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,287.72 : 454,892.06 = 90,051.35 : x
  2. Step 2: Convert to fraction form
    303,287.72/454,892.06 = 90,051.35/x
  3. Step 3: Cross multiply
    303,287.72x = 454,892.06 × 90,051.35
  4. Step 4: Simplify right side
    303,287.72x = 40,963,641,382.56
  5. Step 5: Solve for x
    x = 40,963,641,382.56/303,287.72
  6. Step 6: Final answer
    x = 135,065.28

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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.