Home / 288,975.60-398,767.80-161,629.20

Finding the Fourth Proportional to 288,975.60, 398,767.80 and 161,629.20

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Solution

The fourth proportional to 288,975.60, 398,767.80 and 161,629.20 is: 223,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,975.60 : 398,767.80 = 161,629.20 : x
  2. Step 2: Convert to fraction form
    288,975.60/398,767.80 = 161,629.20/x
  3. Step 3: Cross multiply
    288,975.60x = 398,767.80 × 161,629.20
  4. Step 4: Simplify right side
    288,975.60x = 64,452,520,499.76
  5. Step 5: Solve for x
    x = 64,452,520,499.76/288,975.60
  6. Step 6: Final answer
    x = 223,037.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.