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Finding the Fourth Proportional to 334,520.80, 462,021.83 and 220,309.98

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Solution

The fourth proportional to 334,520.80, 462,021.83 and 220,309.98 is: 304,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,520.80 : 462,021.83 = 220,309.98 : x
  2. Step 2: Convert to fraction form
    334,520.80/462,021.83 = 220,309.98/x
  3. Step 3: Cross multiply
    334,520.80x = 462,021.83 × 220,309.98
  4. Step 4: Simplify right side
    334,520.80x = 101,788,020,126.86
  5. Step 5: Solve for x
    x = 101,788,020,126.86/334,520.80
  6. Step 6: Final answer
    x = 304,280.09

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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.