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Finding the Fourth Proportional to 300,090.30, 450,135.45 and 181,992.30

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Solution

The fourth proportional to 300,090.30, 450,135.45 and 181,992.30 is: 272,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,090.30 : 450,135.45 = 181,992.30 : x
  2. Step 2: Convert to fraction form
    300,090.30/450,135.45 = 181,992.30/x
  3. Step 3: Cross multiply
    300,090.30x = 450,135.45 × 181,992.30
  4. Step 4: Simplify right side
    300,090.30x = 81,921,185,857.04
  5. Step 5: Solve for x
    x = 81,921,185,857.04/300,090.30
  6. Step 6: Final answer
    x = 272,988.45

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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.