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Finding the Fourth Proportional to 270,208.02, 405,265.95 and 90,273.06

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Solution

The fourth proportional to 270,208.02, 405,265.95 and 90,273.06 is: 135,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,208.02 : 405,265.95 = 90,273.06 : x
  2. Step 2: Convert to fraction form
    270,208.02/405,265.95 = 90,273.06/x
  3. Step 3: Cross multiply
    270,208.02x = 405,265.95 × 90,273.06
  4. Step 4: Simplify right side
    270,208.02x = 36,584,597,420.31
  5. Step 5: Solve for x
    x = 36,584,597,420.31/270,208.02
  6. Step 6: Final answer
    x = 135,394.20

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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.