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Finding the Fourth Proportional to 545,163.69, 752,325.81 and 303,441.03

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Solution

The fourth proportional to 545,163.69, 752,325.81 and 303,441.03 is: 418,748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,163.69 : 752,325.81 = 303,441.03 : x
  2. Step 2: Convert to fraction form
    545,163.69/752,325.81 = 303,441.03/x
  3. Step 3: Cross multiply
    545,163.69x = 752,325.81 × 303,441.03
  4. Step 4: Simplify right side
    545,163.69x = 228,286,518,681.98
  5. Step 5: Solve for x
    x = 228,286,518,681.98/545,163.69
  6. Step 6: Final answer
    x = 418,748.58

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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.