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Finding the Fourth Proportional to 303,269.60, 454,904.40 and 145,416.80

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Solution

The fourth proportional to 303,269.60, 454,904.40 and 145,416.80 is: 218,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,269.60 : 454,904.40 = 145,416.80 : x
  2. Step 2: Convert to fraction form
    303,269.60/454,904.40 = 145,416.80/x
  3. Step 3: Cross multiply
    303,269.60x = 454,904.40 × 145,416.80
  4. Step 4: Simplify right side
    303,269.60x = 66,150,742,153.92
  5. Step 5: Solve for x
    x = 66,150,742,153.92/303,269.60
  6. Step 6: Final answer
    x = 218,125.20

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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.