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Finding the Fourth Proportional to 166,212.20, 249,311.90 and 55,404.20

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Solution

The fourth proportional to 166,212.20, 249,311.90 and 55,404.20 is: 83,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212.20 : 249,311.90 = 55,404.20 : x
  2. Step 2: Convert to fraction form
    166,212.20/249,311.90 = 55,404.20/x
  3. Step 3: Cross multiply
    166,212.20x = 249,311.90 × 55,404.20
  4. Step 4: Simplify right side
    166,212.20x = 13,812,926,369.98
  5. Step 5: Solve for x
    x = 13,812,926,369.98/166,212.20
  6. Step 6: Final answer
    x = 83,104.17

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1.5x scale

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.