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Finding the Fourth Proportional to 328,454.89, 492,905.89 and 118,114.09

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Solution

The fourth proportional to 328,454.89, 492,905.89 and 118,114.09 is: 177,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,454.89 : 492,905.89 = 118,114.09 : x
  2. Step 2: Convert to fraction form
    328,454.89/492,905.89 = 118,114.09/x
  3. Step 3: Cross multiply
    328,454.89x = 492,905.89 × 118,114.09
  4. Step 4: Simplify right side
    328,454.89x = 58,219,130,652.99
  5. Step 5: Solve for x
    x = 58,219,130,652.99/328,454.89
  6. Step 6: Final answer
    x = 177,251.53

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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.