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Finding the Fourth Proportional to 303,282.60, 454,923.90 and 145,429.80

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Solution

The fourth proportional to 303,282.60, 454,923.90 and 145,429.80 is: 218,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,282.60 : 454,923.90 = 145,429.80 : x
  2. Step 2: Convert to fraction form
    303,282.60/454,923.90 = 145,429.80/x
  3. Step 3: Cross multiply
    303,282.60x = 454,923.90 × 145,429.80
  4. Step 4: Simplify right side
    303,282.60x = 66,159,491,792.22
  5. Step 5: Solve for x
    x = 66,159,491,792.22/303,282.60
  6. Step 6: Final answer
    x = 218,144.70

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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.