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Finding the Fourth Proportional to 270,189.36, 405,283.41 and 253,747.89

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Solution

The fourth proportional to 270,189.36, 405,283.41 and 253,747.89 is: 380,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,189.36 : 405,283.41 = 253,747.89 : x
  2. Step 2: Convert to fraction form
    270,189.36/405,283.41 = 253,747.89/x
  3. Step 3: Cross multiply
    270,189.36x = 405,283.41 × 253,747.89
  4. Step 4: Simplify right side
    270,189.36x = 102,839,810,139.51
  5. Step 5: Solve for x
    x = 102,839,810,139.51/270,189.36
  6. Step 6: Final answer
    x = 380,621.24

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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.