Home / 297,628.80-446,515.20-87,273.60

Finding the Fourth Proportional to 297,628.80, 446,515.20 and 87,273.60

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Solution

The fourth proportional to 297,628.80, 446,515.20 and 87,273.60 is: 130,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,628.80 : 446,515.20 = 87,273.60 : x
  2. Step 2: Convert to fraction form
    297,628.80/446,515.20 = 87,273.60/x
  3. Step 3: Cross multiply
    297,628.80x = 446,515.20 × 87,273.60
  4. Step 4: Simplify right side
    297,628.80x = 38,968,988,958.72
  5. Step 5: Solve for x
    x = 38,968,988,958.72/297,628.80
  6. Step 6: Final answer
    x = 130,931.51

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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.