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Finding the Fourth Proportional to 300,805.67, 415,300.58 and 193,562.08

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Solution

The fourth proportional to 300,805.67, 415,300.58 and 193,562.08 is: 267,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,805.67 : 415,300.58 = 193,562.08 : x
  2. Step 2: Convert to fraction form
    300,805.67/415,300.58 = 193,562.08/x
  3. Step 3: Cross multiply
    300,805.67x = 415,300.58 × 193,562.08
  4. Step 4: Simplify right side
    300,805.67x = 80,386,444,090.01
  5. Step 5: Solve for x
    x = 80,386,444,090.01/300,805.67
  6. Step 6: Final answer
    x = 267,237.13

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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.