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Finding the Fourth Proportional to 303,357.10, 454,992.45 and 103,686.70

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Solution

The fourth proportional to 303,357.10, 454,992.45 and 103,686.70 is: 155,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,357.10 : 454,992.45 = 103,686.70 : x
  2. Step 2: Convert to fraction form
    303,357.10/454,992.45 = 103,686.70/x
  3. Step 3: Cross multiply
    303,357.10x = 454,992.45 × 103,686.70
  4. Step 4: Simplify right side
    303,357.10x = 47,176,665,665.42
  5. Step 5: Solve for x
    x = 47,176,665,665.42/303,357.10
  6. Step 6: Final answer
    x = 155,515.28

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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.