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Finding the Fourth Proportional to 421,063.52, 631,598.01 and 168,365.24

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Solution

The fourth proportional to 421,063.52, 631,598.01 and 168,365.24 is: 252,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,063.52 : 631,598.01 = 168,365.24 : x
  2. Step 2: Convert to fraction form
    421,063.52/631,598.01 = 168,365.24/x
  3. Step 3: Cross multiply
    421,063.52x = 631,598.01 × 168,365.24
  4. Step 4: Simplify right side
    421,063.52x = 106,339,147,379.18
  5. Step 5: Solve for x
    x = 106,339,147,379.18/421,063.52
  6. Step 6: Final answer
    x = 252,548.95

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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.