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Finding the Fourth Proportional to 219,118.83, 329,256.19 and 117,991.64

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Solution

The fourth proportional to 219,118.83, 329,256.19 and 117,991.64 is: 177,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,118.83 : 329,256.19 = 117,991.64 : x
  2. Step 2: Convert to fraction form
    219,118.83/329,256.19 = 117,991.64/x
  3. Step 3: Cross multiply
    219,118.83x = 329,256.19 × 117,991.64
  4. Step 4: Simplify right side
    219,118.83x = 38,849,478,145.18
  5. Step 5: Solve for x
    x = 38,849,478,145.18/219,118.83
  6. Step 6: Final answer
    x = 177,298.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.