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Finding the Fourth Proportional to 545,314.98, 818,346.20 and 190,329.00

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Solution

The fourth proportional to 545,314.98, 818,346.20 and 190,329.00 is: 285,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,314.98 : 818,346.20 = 190,329.00 : x
  2. Step 2: Convert to fraction form
    545,314.98/818,346.20 = 190,329.00/x
  3. Step 3: Cross multiply
    545,314.98x = 818,346.20 × 190,329.00
  4. Step 4: Simplify right side
    545,314.98x = 155,755,011,793.00
  5. Step 5: Solve for x
    x = 155,755,011,793.00/545,314.98
  6. Step 6: Final answer
    x = 285,623.94

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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.