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Finding the Fourth Proportional to 347,710.80, 521,566.20 and 123,069.45

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Solution

The fourth proportional to 347,710.80, 521,566.20 and 123,069.45 is: 184,604.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,710.80 : 521,566.20 = 123,069.45 : x
  2. Step 2: Convert to fraction form
    347,710.80/521,566.20 = 123,069.45/x
  3. Step 3: Cross multiply
    347,710.80x = 521,566.20 × 123,069.45
  4. Step 4: Simplify right side
    347,710.80x = 64,188,865,372.59
  5. Step 5: Solve for x
    x = 64,188,865,372.59/347,710.80
  6. Step 6: Final answer
    x = 184,604.18

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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.