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Finding the Fourth Proportional to 288,846.92, 398,645.88 and 161,529.68

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Solution

The fourth proportional to 288,846.92, 398,645.88 and 161,529.68 is: 222,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,846.92 : 398,645.88 = 161,529.68 : x
  2. Step 2: Convert to fraction form
    288,846.92/398,645.88 = 161,529.68/x
  3. Step 3: Cross multiply
    288,846.92x = 398,645.88 × 161,529.68
  4. Step 4: Simplify right side
    288,846.92x = 64,393,141,429.72
  5. Step 5: Solve for x
    x = 64,393,141,429.72/288,846.92
  6. Step 6: Final answer
    x = 222,931.72

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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.