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Finding the Fourth Proportional to 166,534.80, 249,364.80 and 131,251.20

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Solution

The fourth proportional to 166,534.80, 249,364.80 and 131,251.20 is: 196,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,534.80 : 249,364.80 = 131,251.20 : x
  2. Step 2: Convert to fraction form
    166,534.80/249,364.80 = 131,251.20/x
  3. Step 3: Cross multiply
    166,534.80x = 249,364.80 × 131,251.20
  4. Step 4: Simplify right side
    166,534.80x = 32,729,429,237.76
  5. Step 5: Solve for x
    x = 32,729,429,237.76/166,534.80
  6. Step 6: Final answer
    x = 196,532.07

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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.