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Finding the Fourth Proportional to 405,060.75, 607,176.41 and 168,540.75

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Solution

The fourth proportional to 405,060.75, 607,176.41 and 168,540.75 is: 252,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,060.75 : 607,176.41 = 168,540.75 : x
  2. Step 2: Convert to fraction form
    405,060.75/607,176.41 = 168,540.75/x
  3. Step 3: Cross multiply
    405,060.75x = 607,176.41 × 168,540.75
  4. Step 4: Simplify right side
    405,060.75x = 102,333,966,681.00
  5. Step 5: Solve for x
    x = 102,333,966,681.00/405,060.75
  6. Step 6: Final answer
    x = 252,638.57

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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.