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Finding the Fourth Proportional to 345,918.60, 519,096.60 and 203,763.60

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Solution

The fourth proportional to 345,918.60, 519,096.60 and 203,763.60 is: 305,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,918.60 : 519,096.60 = 203,763.60 : x
  2. Step 2: Convert to fraction form
    345,918.60/519,096.60 = 203,763.60/x
  3. Step 3: Cross multiply
    345,918.60x = 519,096.60 × 203,763.60
  4. Step 4: Simplify right side
    345,918.60x = 105,772,991,963.76
  5. Step 5: Solve for x
    x = 105,772,991,963.76/345,918.60
  6. Step 6: Final answer
    x = 305,774.23

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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.