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Finding the Fourth Proportional to 288,992.37, 398,800.22 and 161,665.23

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Solution

The fourth proportional to 288,992.37, 398,800.22 and 161,665.23 is: 223,092.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,992.37 : 398,800.22 = 161,665.23 : x
  2. Step 2: Convert to fraction form
    288,992.37/398,800.22 = 161,665.23/x
  3. Step 3: Cross multiply
    288,992.37x = 398,800.22 × 161,665.23
  4. Step 4: Simplify right side
    288,992.37x = 64,472,128,482.02
  5. Step 5: Solve for x
    x = 64,472,128,482.02/288,992.37
  6. Step 6: Final answer
    x = 223,092.84

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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.