Home / 215,903.60-324,136.04-166,018.73

Finding the Fourth Proportional to 215,903.60, 324,136.04 and 166,018.73

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Solution

The fourth proportional to 215,903.60, 324,136.04 and 166,018.73 is: 249,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,903.60 : 324,136.04 = 166,018.73 : x
  2. Step 2: Convert to fraction form
    215,903.60/324,136.04 = 166,018.73/x
  3. Step 3: Cross multiply
    215,903.60x = 324,136.04 × 166,018.73
  4. Step 4: Simplify right side
    215,903.60x = 53,812,651,829.81
  5. Step 5: Solve for x
    x = 53,812,651,829.81/215,903.60
  6. Step 6: Final answer
    x = 249,243.89

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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.