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Finding the Fourth Proportional to 166,412.40, 249,885.90 and 154,132.80

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Solution

The fourth proportional to 166,412.40, 249,885.90 and 154,132.80 is: 231,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,412.40 : 249,885.90 = 154,132.80 : x
  2. Step 2: Convert to fraction form
    166,412.40/249,885.90 = 154,132.80/x
  3. Step 3: Cross multiply
    166,412.40x = 249,885.90 × 154,132.80
  4. Step 4: Simplify right side
    166,412.40x = 38,515,613,447.52
  5. Step 5: Solve for x
    x = 38,515,613,447.52/166,412.40
  6. Step 6: Final answer
    x = 231,446.78

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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.