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Finding the Fourth Proportional to 487,597.27, 731,262.85 and 145,960.54

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Solution

The fourth proportional to 487,597.27, 731,262.85 and 145,960.54 is: 218,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,597.27 : 731,262.85 = 145,960.54 : x
  2. Step 2: Convert to fraction form
    487,597.27/731,262.85 = 145,960.54/x
  3. Step 3: Cross multiply
    487,597.27x = 731,262.85 × 145,960.54
  4. Step 4: Simplify right side
    487,597.27x = 106,735,520,467.94
  5. Step 5: Solve for x
    x = 106,735,520,467.94/487,597.27
  6. Step 6: Final answer
    x = 218,900.98

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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.