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Finding the Fourth Proportional to 545,327.70, 818,002.89 and 145,968

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Solution

The fourth proportional to 545,327.70, 818,002.89 and 145,968 is: 218,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,327.70 : 818,002.89 = 145,968 : x
  2. Step 2: Convert to fraction form
    545,327.70/818,002.89 = 145,968/x
  3. Step 3: Cross multiply
    545,327.70x = 818,002.89 × 145,968
  4. Step 4: Simplify right side
    545,327.70x = 119,402,245,847.52
  5. Step 5: Solve for x
    x = 119,402,245,847.52/545,327.70
  6. Step 6: Final answer
    x = 218,955.04

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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.