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Finding the Fourth Proportional to 270,133.33, 405,217.28 and 103,921.33

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Solution

The fourth proportional to 270,133.33, 405,217.28 and 103,921.33 is: 155,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,133.33 : 405,217.28 = 103,921.33 : x
  2. Step 2: Convert to fraction form
    270,133.33/405,217.28 = 103,921.33/x
  3. Step 3: Cross multiply
    270,133.33x = 405,217.28 × 103,921.33
  4. Step 4: Simplify right side
    270,133.33x = 42,110,718,676.58
  5. Step 5: Solve for x
    x = 42,110,718,676.58/270,133.33
  6. Step 6: Final answer
    x = 155,888.64

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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.