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Finding the Fourth Proportional to 545,297.20, 818,070.20 and 166,251.83

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Solution

The fourth proportional to 545,297.20, 818,070.20 and 166,251.83 is: 249,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,297.20 : 818,070.20 = 166,251.83 : x
  2. Step 2: Convert to fraction form
    545,297.20/818,070.20 = 166,251.83/x
  3. Step 3: Cross multiply
    545,297.20x = 818,070.20 × 166,251.83
  4. Step 4: Simplify right side
    545,297.20x = 136,005,663,520.30
  5. Step 5: Solve for x
    x = 136,005,663,520.30/545,297.20
  6. Step 6: Final answer
    x = 249,415.67

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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.