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Finding the Fourth Proportional to 166,273.60, 249,410.40 and 66,449.20

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Solution

The fourth proportional to 166,273.60, 249,410.40 and 66,449.20 is: 99,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,273.60 : 249,410.40 = 66,449.20 : x
  2. Step 2: Convert to fraction form
    166,273.60/249,410.40 = 66,449.20/x
  3. Step 3: Cross multiply
    166,273.60x = 249,410.40 × 66,449.20
  4. Step 4: Simplify right side
    166,273.60x = 16,573,121,551.68
  5. Step 5: Solve for x
    x = 16,573,121,551.68/166,273.60
  6. Step 6: Final answer
    x = 99,673.80

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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.