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Finding the Fourth Proportional to 402,185.44, 555,022.59 and 220,914.14

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Solution

The fourth proportional to 402,185.44, 555,022.59 and 220,914.14 is: 304,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,185.44 : 555,022.59 = 220,914.14 : x
  2. Step 2: Convert to fraction form
    402,185.44/555,022.59 = 220,914.14/x
  3. Step 3: Cross multiply
    402,185.44x = 555,022.59 × 220,914.14
  4. Step 4: Simplify right side
    402,185.44x = 122,612,338,150.42
  5. Step 5: Solve for x
    x = 122,612,338,150.42/402,185.44
  6. Step 6: Final answer
    x = 304,865.19

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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.