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Finding the Fourth Proportional to 405,504.11, 608,117.76 and 165,580.64

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Solution

The fourth proportional to 405,504.11, 608,117.76 and 165,580.64 is: 248,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,504.11 : 608,117.76 = 165,580.64 : x
  2. Step 2: Convert to fraction form
    405,504.11/608,117.76 = 165,580.64/x
  3. Step 3: Cross multiply
    405,504.11x = 608,117.76 × 165,580.64
  4. Step 4: Simplify right side
    405,504.11x = 100,692,527,896.17
  5. Step 5: Solve for x
    x = 100,692,527,896.17/405,504.11
  6. Step 6: Final answer
    x = 248,314.44

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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.