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Finding the Fourth Proportional to 312,366.60, 468,549.90 and 154,902.60

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Solution

The fourth proportional to 312,366.60, 468,549.90 and 154,902.60 is: 232,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,366.60 : 468,549.90 = 154,902.60 : x
  2. Step 2: Convert to fraction form
    312,366.60/468,549.90 = 154,902.60/x
  3. Step 3: Cross multiply
    312,366.60x = 468,549.90 × 154,902.60
  4. Step 4: Simplify right side
    312,366.60x = 72,579,597,739.74
  5. Step 5: Solve for x
    x = 72,579,597,739.74/312,366.60
  6. Step 6: Final answer
    x = 232,353.90

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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.