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Finding the Fourth Proportional to 312,061.60, 468,092.40 and 303,313.60

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Solution

The fourth proportional to 312,061.60, 468,092.40 and 303,313.60 is: 454,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,061.60 : 468,092.40 = 303,313.60 : x
  2. Step 2: Convert to fraction form
    312,061.60/468,092.40 = 303,313.60/x
  3. Step 3: Cross multiply
    312,061.60x = 468,092.40 × 303,313.60
  4. Step 4: Simplify right side
    312,061.60x = 141,978,790,976.64
  5. Step 5: Solve for x
    x = 141,978,790,976.64/312,061.60
  6. Step 6: Final answer
    x = 454,970.40

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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.