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Finding the Fourth Proportional to 220,818.96, 304,788.42 and 136,007.10

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Solution

The fourth proportional to 220,818.96, 304,788.42 and 136,007.10 is: 187,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,818.96 : 304,788.42 = 136,007.10 : x
  2. Step 2: Convert to fraction form
    220,818.96/304,788.42 = 136,007.10/x
  3. Step 3: Cross multiply
    220,818.96x = 304,788.42 × 136,007.10
  4. Step 4: Simplify right side
    220,818.96x = 41,453,389,117.78
  5. Step 5: Solve for x
    x = 41,453,389,117.78/220,818.96
  6. Step 6: Final answer
    x = 187,725.68

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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.