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Finding the Fourth Proportional to 205,810.40, 308,132.40 and 184,815.20

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Solution

The fourth proportional to 205,810.40, 308,132.40 and 184,815.20 is: 276,699.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,810.40 : 308,132.40 = 184,815.20 : x
  2. Step 2: Convert to fraction form
    205,810.40/308,132.40 = 184,815.20/x
  3. Step 3: Cross multiply
    205,810.40x = 308,132.40 × 184,815.20
  4. Step 4: Simplify right side
    205,810.40x = 56,947,551,132.48
  5. Step 5: Solve for x
    x = 56,947,551,132.48/205,810.40
  6. Step 6: Final answer
    x = 276,699.09

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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.