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Finding the Fourth Proportional to 303,107.98, 454,661.89 and 103,428.35

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Solution

The fourth proportional to 303,107.98, 454,661.89 and 103,428.35 is: 155,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,107.98 : 454,661.89 = 103,428.35 : x
  2. Step 2: Convert to fraction form
    303,107.98/454,661.89 = 103,428.35/x
  3. Step 3: Cross multiply
    303,107.98x = 454,661.89 × 103,428.35
  4. Step 4: Simplify right side
    303,107.98x = 47,024,929,090.58
  5. Step 5: Solve for x
    x = 47,024,929,090.58/303,107.98
  6. Step 6: Final answer
    x = 155,142.50

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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.