Home / 288,155.74-397,179-192,627.58

Finding the Fourth Proportional to 288,155.74, 397,179 and 192,627.58

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Solution

The fourth proportional to 288,155.74, 397,179 and 192,627.58 is: 265,507.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,155.74 : 397,179 = 192,627.58 : x
  2. Step 2: Convert to fraction form
    288,155.74/397,179 = 192,627.58/x
  3. Step 3: Cross multiply
    288,155.74x = 397,179 × 192,627.58
  4. Step 4: Simplify right side
    288,155.74x = 76,507,629,596.82
  5. Step 5: Solve for x
    x = 76,507,629,596.82/288,155.74
  6. Step 6: Final answer
    x = 265,507.91

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1.5x scale

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.