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Finding the Fourth Proportional to 492,985.50, 680,320.23 and 266,630.94

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Solution

The fourth proportional to 492,985.50, 680,320.23 and 266,630.94 is: 367,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,985.50 : 680,320.23 = 266,630.94 : x
  2. Step 2: Convert to fraction form
    492,985.50/680,320.23 = 266,630.94/x
  3. Step 3: Cross multiply
    492,985.50x = 680,320.23 × 266,630.94
  4. Step 4: Simplify right side
    492,985.50x = 181,394,422,425.92
  5. Step 5: Solve for x
    x = 181,394,422,425.92/492,985.50
  6. Step 6: Final answer
    x = 367,950.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.