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Finding the Fourth Proportional to 219,151.80, 329,034.90 and 136,207.80

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Solution

The fourth proportional to 219,151.80, 329,034.90 and 136,207.80 is: 204,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,151.80 : 329,034.90 = 136,207.80 : x
  2. Step 2: Convert to fraction form
    219,151.80/329,034.90 = 136,207.80/x
  3. Step 3: Cross multiply
    219,151.80x = 329,034.90 × 136,207.80
  4. Step 4: Simplify right side
    219,151.80x = 44,817,119,852.22
  5. Step 5: Solve for x
    x = 44,817,119,852.22/219,151.80
  6. Step 6: Final answer
    x = 204,502.63

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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.