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Finding the Fourth Proportional to 519,264.40, 778,815.60 and 164,365.60

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Solution

The fourth proportional to 519,264.40, 778,815.60 and 164,365.60 is: 246,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,264.40 : 778,815.60 = 164,365.60 : x
  2. Step 2: Convert to fraction form
    519,264.40/778,815.60 = 164,365.60/x
  3. Step 3: Cross multiply
    519,264.40x = 778,815.60 × 164,365.60
  4. Step 4: Simplify right side
    519,264.40x = 128,010,493,383.36
  5. Step 5: Solve for x
    x = 128,010,493,383.36/519,264.40
  6. Step 6: Final answer
    x = 246,522.76

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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.