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Finding the Fourth Proportional to 219,578.64, 303,019.08 and 122,785.92

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Solution

The fourth proportional to 219,578.64, 303,019.08 and 122,785.92 is: 169,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,578.64 : 303,019.08 = 122,785.92 : x
  2. Step 2: Convert to fraction form
    219,578.64/303,019.08 = 122,785.92/x
  3. Step 3: Cross multiply
    219,578.64x = 303,019.08 × 122,785.92
  4. Step 4: Simplify right side
    219,578.64x = 37,206,476,515.35
  5. Step 5: Solve for x
    x = 37,206,476,515.35/219,578.64
  6. Step 6: Final answer
    x = 169,444.88

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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.