Home / 217,991.64-300,856.13-122,498.25

Finding the Fourth Proportional to 217,991.64, 300,856.13 and 122,498.25

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Solution

The fourth proportional to 217,991.64, 300,856.13 and 122,498.25 is: 169,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,991.64 : 300,856.13 = 122,498.25 : x
  2. Step 2: Convert to fraction form
    217,991.64/300,856.13 = 122,498.25/x
  3. Step 3: Cross multiply
    217,991.64x = 300,856.13 × 122,498.25
  4. Step 4: Simplify right side
    217,991.64x = 36,854,348,814.28
  5. Step 5: Solve for x
    x = 36,854,348,814.28/217,991.64
  6. Step 6: Final answer
    x = 169,063.13

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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.